| ||||
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Cardinal | two hundred seventy-one | |||
Ordinal | 271st (two hundred seventy-first) | |||
Factorization | prime | |||
Prime | yes | |||
Greek numeral | ΣΟΑ´ | |||
Roman numeral | CCLXXI | |||
Binary | 1000011112 | |||
Ternary | 1010013 | |||
Senary | 11316 | |||
Octal | 4178 | |||
Duodecimal | 1A712 | |||
Hexadecimal | 10F16 |
271 (two hundred [and] seventy-one) is the natural number after 270 and before 272.
271 is a twin prime with 269, [1] a cuban prime (a prime number that is the difference of two consecutive cubes), [2] and a centered hexagonal number. [3] It is the smallest prime number bracketed on both sides by numbers divisible by cubes, [4] and the smallest prime number bracketed by numbers with five primes (counting repetitions) in their factorizations: [5]
After 7, 271 is the second-smallest Eisenstein–Mersenne prime, one of the analogues of the Mersenne primes in the Eisenstein integers. [6]
271 is the largest prime factor of the five-digit repunit 11111, [7] and the largest prime number for which the decimal period of its multiplicative inverse is 5: [8]
It is a sexy prime with 277.