| ||||
|---|---|---|---|---|
| Cardinal | four hundred forty | |||
| Ordinal | 440th (four hundred fortieth) | |||
| Factorization | 23 × 5 × 11 | |||
| Divisors | 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440 | |||
| Greek numeral | ΥΜ´ | |||
| Roman numeral | CDXL | |||
| Binary | 1101110002 | |||
| Ternary | 1210223 | |||
| Senary | 20126 | |||
| Octal | 6708 | |||
| Duodecimal | 30812 | |||
| Hexadecimal | 1B816 | |||
| Hebrew | מת (Tav)(Mem) | |||
440 (four hundred [and] forty) is the natural number following 439 and preceding 441.
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Transcription
In mathematics
440 has the factorization 23 · 5 · 11.
440 is:
- Even
- The sum of the first 17 prime numbers
- A harshad number
- An abundant number[1]
- A happy number[2]
In science
- A440 (pitch standard) widely used for the musical note A4, the A above Middle C, often used for tuning instruments
References
- ^ "Facts about the number 440". Numbermatics - the number explorer. Retrieved 21 March 2017.
- ^ Guy, Richard (9 March 2013). Unsolved Problems in Number Theory. Springer Science & Business Media. p. 358. ISBN 9780387266770.
This page was last edited on 19 March 2024, at 21:17