Compare 31 vs 331
Property | 31 | 331 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 311 | 3311 |
Prime factorization | 31 | 331 |
Divisors count | 2 | 2 |
Divisors | 1, 31 | 1, 331 |
Number of properties | 18 | 10 |
Additive primes | 39th | |
Centered decagonal primes | 2nd | |
Centered triangular primes | 2nd | |
Chen primes | 11th | |
Class 1+ primes | 8th | |
Cuban primes 1 | 7th | |
Emirps | 3rd | |
Euclid primes | 4th | |
Good primes | 24th | |
Happy primes | 5th | 17th |
Harmonic primes | 28th | |
Isolated primes | 28th | |
Lucky primes | 4th | 19th |
Mersenne primes | 3rd | |
Multiplicative primes | 7th | |
Pierpont primes of the 2nd kind | 8th | |
Primes | 11th | 67th |
Right-truncatable primes | 7th | |
Sexy primes (1st member) | 7th | 37th |
Sexy prime triplets (1st member) | 5th | |
Solinas primes | 10th | |
Super primes | 5th | 19th |
Twin primes (2nd member) | 5th | |
Roman numberals | XXXI | CCCXXXI |
Base 2 | 111112 | 1010010112 |
Base 3 | 10113 | 1100213 |
Base 4 | 1334 | 110234 |
Base 5 | 1115 | 23115 |
Base 6 | 516 | 13116 |
Base 7 | 437 | 6527 |
Base 8 | 378 | 5138 |
Base 9 | 349 | 4079 |
Base 10 | 3110 | 33110 |
Base 11 | 2911 | 28111 |
Base 12 | 2712 | 23712 |
Base 13 | 2513 | 1c613 |
Base 14 | 2314 | 19914 |
Base 15 | 2115 | 17115 |
Base 16 | 1f16 | 14b16 |