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.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction