309 (number)
309 or three hundred nine is the natural number following 308 and preceding 310.
| ||||
|---|---|---|---|---|
| Cardinal | three hundred nine | |||
| Ordinal | 309th (three hundred ninth) | |||
| Factorization | 3 × 103 | |||
| Divisors | 1, 3, 103, 309 | |||
| Greek numeral | ΤΘ´ | |||
| Roman numeral | CCCIX | |||
| Binary | 1001101012 | |||
| Ternary | 1021103 | |||
| Senary | 12336 | |||
| Octal | 4658 | |||
| Duodecimal | 21912 | |||
| Hexadecimal | 13516 | |||
In mathematics
[edit]- 309 is an odd composite number.[1]
- 309 is composed of two distinct prime numbers multiplied (103 and 3).[1]
- 309 is a Blum integer.[2]
- 309 is a centered icosahedral number.[3]
References
[edit]- ^ a b "Numbermatics: The Number Explorer". Numbermatics. Apr 30, 2024. Retrieved Apr 30, 2024.
- ^ "Blum Number". PlanetMath. Apr 30, 2024. Retrieved Apr 30, 2024.
- ^ Sloane, N. J. A. (May 1, 2024). "The On-Line Encyclopedia of Integer Sequences". OEIS. Retrieved May 1, 2024.
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