Compare 331 vs 487
| Property | 331 | 487 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 3311 | 4871 |
| Prime factorization | 331 | 487 |
| Divisors count | 2 | 2 |
| Divisors | 1, 331 | 1, 487 |
| Number of properties | 10 | 10 |
| Additive primes | 39th | 54th |
| Chen primes | 65th | |
| Cousin primes (1st member) | 26th | |
| Cuban primes 1 | 7th | |
| Good primes | 24th | |
| Happy primes | 17th | 23rd |
| Harmonic primes | 28th | 37th |
| Isolated primes | 28th | 46th |
| Long primes | 33rd | |
| Lucky primes | 19th | 26th |
| Pierpont primes | 16th | |
| Primes | 67th | 93rd |
| Sexy primes (1st member) | 37th | |
| Super primes | 19th | |
| Roman numberals | CCCXXXI | CDLXXXVII |
| Base 2 | 1010010112 | 1111001112 |
| Base 3 | 1100213 | 2000013 |
| Base 4 | 110234 | 132134 |
| Base 5 | 23115 | 34225 |
| Base 6 | 13116 | 21316 |
| Base 7 | 6527 | 12647 |
| Base 8 | 5138 | 7478 |
| Base 9 | 4079 | 6019 |
| Base 10 | 33110 | 48710 |
| Base 11 | 28111 | 40311 |
| Base 12 | 23712 | 34712 |
| Base 13 | 1c613 | 2b613 |
| Base 14 | 19914 | 26b14 |
| Base 15 | 17115 | 22715 |
| Base 16 | 14b16 | 1e716 |