269 (two hundred [and] sixty-nine) is the natural number between 268 and 270. It is also a prime number.
| ||||
---|---|---|---|---|
Cardinal | two hundred sixty-nine | |||
Ordinal | 269th (two hundred sixty-ninth) | |||
Factorization | prime | |||
Prime | yes | |||
Greek numeral | ΣΞΘ´ | |||
Roman numeral | CCLXIX | |||
Binary | 1000011012 | |||
Ternary | 1002223 | |||
Senary | 11256 | |||
Octal | 4158 | |||
Duodecimal | 1A512 | |||
Hexadecimal | 10D16 |
269 is a twin prime,[1] and a Ramanujan prime.[2] It is the largest prime factor of 9! + 1 = 362881,[3] and the smallest natural number that cannot be represented as the determinant of a 10 × 10 (0,1)-matrix.[4]