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# 200 (number)

 ← 199 200 201 →
Cardinaltwo hundred
Ordinal200th
(two hundredth)
Factorization23× 52
Divisors1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200
Greek numeralΣ´
Roman numeralCC
Binary110010002
Ternary211023
Quaternary30204
Quinary13005
Senary5326
Octal3108
Duodecimal14812
VigesimalA020
Base 365K36

200 (two hundred) is the natural number following 199 and preceding 201.

The number appears in the Padovan sequence, preceded by 86, 114, 151 (it is the sum of the first two of these).[1]

The sum of Euler's totient function φ(x) over the first twenty-five integers is 200.

200 is the smallest base 10 unprimeable number – it can not be turned into a prime number by changing just one of its digits to any other digit. It is also a Harshad number.

Two hundred is also:

• 1/5
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## References

1. ^ "Sloane's A000931 : Padovan sequence". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-28.
2. ^ North West 200 http://www.northwest200.org/ Archived 2007-03-09 at the Wayback Machine