Compare 1213 vs 1237
| Property | 1213 | 1237 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 12131 | 12371 |
| Prime factorization | 1213 | 1237 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1213 | 1, 1237 |
| Number of properties | 7 | 7 |
| Additive primes | 106th | 109th |
| Cousin primes (1st member) | 45th | |
| Emirps | 52nd | 57th |
| Good primes | 49th | |
| Harmonic primes | 71st | |
| Isolated primes | 117th | 120th |
| Primes | 198th | 203rd |
| Pythagorean primes | 97th | 100th |
| Sexy primes (2nd member) | 88th | |
| Roman numberals | MCCXIII | MCCXXXVII |
| Base 2 | 100101111012 | 100110101012 |
| Base 3 | 11222213 | 12002113 |
| Base 4 | 1023314 | 1031114 |
| Base 5 | 143235 | 144225 |
| Base 6 | 53416 | 54216 |
| Base 7 | 33527 | 34157 |
| Base 8 | 22758 | 23258 |
| Base 9 | 15879 | 16249 |
| Base 10 | 121310 | 123710 |
| Base 11 | a0311 | a2511 |
| Base 12 | 85112 | 87112 |
| Base 13 | 72413 | 74213 |
| Base 14 | 62914 | 64514 |
| Base 15 | 55d15 | 57715 |
| Base 16 | 4bd16 | 4d516 |