Compare 12515 vs 12517
| Property | 12515 | 12517 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 51 × 25031 | 125171 |
| Prime factorization | 5 × 2503 | 12517 |
| Divisors count | 4 | 2 |
| Divisors | 1, 5, 2503, 12515 | 1, 12517 |
| Number of properties | 1 | 4 |
| Isolated primes | 1012th | |
| Primes | 1495th | |
| Pythagorean primes | 739th | |
| Semiprimes | 3256th | |
| Sexy primes (2nd member) | 478th | |
| Roman numberals | ||
| Base 2 | 110000111000112 | 110000111001012 |
| Base 3 | 1220111123 | 1220111213 |
| Base 4 | 30032034 | 30032114 |
| Base 5 | 4000305 | 4000325 |
| Base 6 | 1335356 | 1335416 |
| Base 7 | 513267 | 513317 |
| Base 8 | 303438 | 303458 |
| Base 9 | 181459 | 181479 |
| Base 10 | 1251510 | 1251710 |
| Base 11 | 944811 | 944a11 |
| Base 12 | 72ab12 | 72b112 |
| Base 13 | 590913 | 590b13 |
| Base 14 | 47bd14 | 47c114 |
| Base 15 | 3a9515 | 3a9715 |
| Base 16 | 30e316 | 30e516 |