Compare 1237 vs 1247
| Property | 1237 | 1247 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 12371 | 291 × 431 |
| Prime factorization | 1237 | 29 × 43 |
| Divisors count | 2 | 4 |
| Divisors | 1, 1237 | 1, 29, 43, 1247 |
| Number of properties | 7 | 1 |
| Additive primes | 109th | |
| Emirps | 57th | |
| Harmonic primes | 71st | |
| Isolated primes | 120th | |
| Primes | 203rd | |
| Pythagorean primes | 100th | |
| Semiprimes | 367th | |
| Sexy primes (2nd member) | 88th | |
| Roman numberals | MCCXXXVII | MCCXLVII |
| Base 2 | 100110101012 | 100110111112 |
| Base 3 | 12002113 | 12010123 |
| Base 4 | 1031114 | 1031334 |
| Base 5 | 144225 | 144425 |
| Base 6 | 54216 | 54356 |
| Base 7 | 34157 | 34317 |
| Base 8 | 23258 | 23378 |
| Base 9 | 16249 | 16359 |
| Base 10 | 123710 | 124710 |
| Base 11 | a2511 | a3411 |
| Base 12 | 87112 | 87b12 |
| Base 13 | 74213 | 74c13 |
| Base 14 | 64514 | 65114 |
| Base 15 | 57715 | 58215 |
| Base 16 | 4d516 | 4df16 |