Compare 1237 vs 1245
| Property | 1237 | 1245 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 12371 | 31 × 51 × 831 |
| Prime factorization | 1237 | 3 × 5 × 83 |
| Divisors count | 2 | 8 |
| Divisors | 1, 1237 | 1, 3, 5, 15, 83, 249, 415, 1245 |
| Number of properties | 7 | 0 |
| Additive primes | 109th | |
| Emirps | 57th | |
| Harmonic primes | 71st | |
| Isolated primes | 120th | |
| Primes | 203rd | |
| Pythagorean primes | 100th | |
| Sexy primes (2nd member) | 88th | |
| Roman numberals | MCCXXXVII | MCCXLV |
| Base 2 | 100110101012 | 100110111012 |
| Base 3 | 12002113 | 12010103 |
| Base 4 | 1031114 | 1031314 |
| Base 5 | 144225 | 144405 |
| Base 6 | 54216 | 54336 |
| Base 7 | 34157 | 34267 |
| Base 8 | 23258 | 23358 |
| Base 9 | 16249 | 16339 |
| Base 10 | 123710 | 124510 |
| Base 11 | a2511 | a3211 |
| Base 12 | 87112 | 87912 |
| Base 13 | 74213 | 74a13 |
| Base 14 | 64514 | 64d14 |
| Base 15 | 57715 | 58015 |
| Base 16 | 4d516 | 4dd16 |