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# 40 (number)

 ← 39 40 41 →
Cardinalforty
Ordinal40th
(fortieth)
Factorization23 × 5
Divisors1, 2, 4, 5, 8, 10, 20, 40
Greek numeralΜ´
Roman numeralXL
Binary1010002
Ternary11113
Quaternary2204
Quinary1305
Senary1046
Octal508
Duodecimal3412
Vigesimal2020
Base 361436

40 (forty) is the natural number following 39 and preceding 41.

Though the word is related to "four" (4), the spelling "forty" replaced "fourty" in the course of the 17th century[1][2] and is now the standard form.

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## In religion

The number 40 is found in many traditions without any universal explanation for its use. In Jewish, Christian, Islamic, and other Middle Eastern traditions it is taken to represent a large, approximate number, similar to "umpteen".

### Sumerian

• Enki ( /ˈɛŋki/) or Enkil (Sumerian: dEN.KI(G)𒂗𒆠) is a god in Sumerian mythology, later known as Ea in Akkadian and Babylonian mythology. He was originally patron god of the city of Eridu, but later the influence of his cult spread throughout Mesopotamia and to the Canaanites, Hittites and Hurrians. He was the deity of crafts (gašam); mischief; water, seawater, lake water (a, aba, ab), intelligence (gestú, literally "ear") and creation (Nudimmud: nu, likeness, dim mud, make bear). He was associated with the southern band of constellations called stars of Ea, but also with the constellation AŠ-IKU, the Field (Square of Pegasus). Beginning around the second millennium BCE, he was sometimes referred to in writing by the numeric ideogram for "40," occasionally referred to as his "sacred number."

A large number of myths about Enki have been collected from many sites, stretching from Southern Iraq to the Levantine coast. He figures in the earliest extant cuneiform inscriptions throughout the region and was prominent from the third millennium down to Hellenistic times.

The exact meaning of his name is uncertain: the common translation is "Lord of the Earth": the Sumerian en is translated as a title equivalent to "lord"; it was originally a title given to the High Priest; ki means "earth"; but there are theories that ki in this name has another origin, possibly kig of unknown meaning, or kur meaning "mound". The name Ea is allegedly Hurrian in origin while others claim that it is possibly of Semitic origin and may be a derivation from the West-Semitic root *hyy meaning "life" in this case used for "spring", "running water." In Sumerian E-A means "the house of water", and it has been suggested that this was originally the name for the shrine to the God at Eridu.

### Judaism

• In the Hebrew Bible, forty is often used for time periods, forty days or forty years, which separate "two distinct epochs".[8]
• Rain fell for "forty days and forty nights" during the Flood (Genesis 7:4).
• Noah waited for forty days after the tops of mountains were seen after the flood, before releasing a raven (Genesis 8:5-7).
• Spies were sent by Moses to explore the land of Canaan (promised to the children of Israel) for "forty days" (Numbers 13:2, 25).
• The Hebrew people lived in the lands outside of the promised land for "forty years". This period of years represents the time it takes for a new generation to arise (Numbers 32:13).
• Several Jewish leaders and kings are said to have ruled for "forty years", that is, a generation. Examples include Eli (1 Samuel 4:18), Saul (Acts 13:21), David (2 Samuel 5:4), and Solomon (1 Kings 11:42).
• Goliath challenged the Israelites twice a day for forty days before David defeated him (1 Samuel 17:16).
• Moses spent three consecutive periods of "forty days and forty nights" on Mount Sinai:
1. He went up on the seventh day of Sivan, after God gave the Torah to the Jewish people, in order to learn the Torah from God, and came down on the seventeenth day of Tammuz, when he saw the Jews worshiping the Golden Calf and broke the tablets (Deuteronomy 9:11).
2. He went up on the eighteenth day of Tammuz to beg forgiveness for the people's sin and came down without God's atonement on the twenty-ninth day of Av (Deuteronomy 9:25).
3. He went up on the first day of Elul and came down on the tenth day of Tishrei, the first Yom Kippur, with God's atonement (Deuteronomy 10:10).
• A mikvah consists of 40 se'ah (approximately 200 U.S. gallons or 760 liters) of water
• The prophet Elijah had to walk 40 days and 40 nights before arriving at mount Horeb (1 Kings 19:8).
• 40 lashes is one of the punishments meted out by the Sanhedrin (Deuteronomy 25:3), though in actual practice only 39 lashes were administered.[9]
• (Numbers 14:33–34) alludes to the same[clarification needed] with ties to the prophecy in The Book of Daniel. "For forty years—one year for each of the forty days you explored the land—you will suffer for your sins and know what it is like to have me against you."
• One of the prerequisites for a man to study Kabbalah is that he is forty years old.
• "The registering of these men was carried on cruelly, zealously, assiduously, from the rising of the sun to its going down, and was not brought to an end in forty days" (3 Maccabees 4:15).

### Christianity

Christianity similarly uses forty to designate important time periods.[8]

• Before his temptation, Jesus fasted "forty days and forty nights" in the Judean desert (Matthew 4:2, Mark 1:13, Luke 4:2).
• Forty days was the period from the resurrection of Jesus to the ascension of Jesus (Acts 1:3).
• According to Stephen, Moses' life is divided into three 40-year segments, separated by his growing to adulthood, fleeing from Egypt, and his return to lead his people out (Acts 7:23,30,36).
• In modern Christian practice, Lent consists of the 40 days preceding Easter. In much of Western Christianity, Sundays are excluded from the count; in Eastern Christianity, Sundays are included.
• The Forty Martyrs of Sebaste
• Kirk Kilisse, "Forty Churches" (Σαράντα Εκκλησιές) in Eastern Thrace
• Rain fell for "forty days and forty nights" during the Flood (Genesis 7:4).

### Islam

• Muhammad was forty years old when he first received the revelation delivered by the archangel Gabriel.
• Masih ad-Dajjal roams around the Earth in forty days, the first day length is like one year, the second day is like one month, the third day is like one week and the next day (until 40th day) is like one day.
• God forbade the Fasiqun (the non-believers) from entering the Holy Land for 40 years to separate them from Musa (Moses) and his brother.[10]
• Musa (Moses) spent 40 days on Mount Sinai where he received the 10 commandments.[11]
• On the 40th verse (ayat) of the 2nd chapter of the Quran (Al-Baqarah) God changes the topic.
• Forty was the number of days that Prophet Ilyas (Elijah) spent in the wilderness before the angel appeared to him with God's message on Mount Horeb.[citation needed]
• Forty was the number of days that Prophet Isa was tempted in the desert by Satan.[citation needed]
• Muhammad praying and fasting in the cave for 40 days.[citation needed]
• Prophets Dawuud and Suleiman each ruled for forty years.[citation needed]
• Regarding the flood that Noah encountered, it is said that for forty days water continued to pour from the heavens and to stream out over the earth.[citation needed]

### Yazidism

• In the Yazidi faith, The Chermera Temple (meaning "40 Men" in the Yazidi dialect) is so old that no one remembers how it came to have that name but it is believed to derive from the burial of 40 men on the mountaintop site.

### Funerary customs

• Some Russians and Serbs believe that ghosts of the dead linger at the site of their death for forty days. After the forty days, additional prayers are performed at the grave (parastos (парастос) or panihida (панихида)), to escort the soul on its way to God's court.
• Many Christian Filipinos mark the end of the initial mourning period on the fortieth day after death, and have a Mass said. They believe that the soul remains on the earthly plane for forty days before entering the afterlife, recalling how Christ ascended to heaven forty days after his Resurrection.

### Hinduism

In the Hindu system some of the popular fasting periods consist 40 days and is called the period One 'Mandala Kalam' Kalam means a period and Mandala Kalam means a period of 40 days. For example, the devotees of Swami Ayyappa, the name of a Hindu god very popular in Kerala, India (Sabarimala Swami Ayyappan) strictly observed forty days fasting and visit (only male devotees were permitted to enter into the god's temple until September 2018) with their holy submittance or offerings on 41st or a convenient day after a minimum 40 days practice of fasting. The offering is called "Kaanikka".

### Sikhism

• Anand Sahib, the fifth and the final of the daily Sikh prayers have 40 paragraphs . and the 40th paragraph is often read when concluding any sikh ceremony.
• Chali Mukte (40 liberated ones) refer to the 40 soldiers in the army of Guru Gobind Singh. These 40 disciples were the most favorite and beloved disciples of the Guru.

## In entertainment

The number on the logo for the American-Japanese hard rock band Crush 40.

## In sports

• In baseball, each team in Major League Baseball is allowed to have 40 players under major-league contracts at any given time (not including players on the 60-day disabled list). From September 1 to the end of the regular season, teams are allowed to expand their game-day rosters to include the entire 40-man roster.
• In horse racing, the maximum permitted number of runners in the Grand National is 40.
• The 40-yard dash is an important metric in American football scouting.
• In tennis, the number 40 represents the third point gained in a game. A score of 40-40 (three points each) is called "deuce", at which time a player must score two consecutive points to win the game.
• In NASCAR, the number of cars that have run each race in the top-level Cup Series since 2016, and the second-level Xfinity Series since 2013.

Forty is also:

## References

2. ^ Oxford English Dictionary, 1st edition, s.v.
3. ^ "Sloane's A000567 : Octagonal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
4. ^ "Sloane's A002411 : Pentagonal pyramidal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
5. ^ "Sloane's A005835 : Pseudoperfect (or semiperfect) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
6. ^ "Sloane's A028442 : Numbers n such that Mertens' function is zero". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
7. ^ "Sloane's A005349 : Niven (or Harshad) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
8. ^ a b Michael David Coogan, A Brief Introduction to the Old Testament: The Hebrew Bible in Its Context, Oxford, 2008, p. 116
9. ^ https://www.jewishvirtuallibrary.org/jsource/judaica/ejud_0002_0007_0_06574.html
10. ^ Qur'an 5:25–26
11. ^ Qur'an 7:142
12. ^ Sesame Street. Season 40. Episode 4187. November 10, 2009. PBS.
13. ^ Dallal, Tamalyn (2007). 40 Days & 1001 Nights. Seattle: Melati Press. back cover. ISBN 978-0-9795155-0-7.
14. ^
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