Compare 1213 vs 1249
| Property | 1213 | 1249 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 12131 | 12491 |
| Prime factorization | 1213 | 1249 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1213 | 1, 1249 |
| Number of properties | 7 | 5 |
| Additive primes | 106th | |
| Cousin primes (1st member) | 45th | |
| Emirps | 52nd | 58th |
| Good primes | 49th | |
| Isolated primes | 117th | 121st |
| Lucky primes | 53rd | |
| Primes | 198th | 204th |
| Pythagorean primes | 97th | 101st |
| Roman numberals | MCCXIII | MCCXLIX |
| Base 2 | 100101111012 | 100111000012 |
| Base 3 | 11222213 | 12010213 |
| Base 4 | 1023314 | 1032014 |
| Base 5 | 143235 | 144445 |
| Base 6 | 53416 | 54416 |
| Base 7 | 33527 | 34337 |
| Base 8 | 22758 | 23418 |
| Base 9 | 15879 | 16379 |
| Base 10 | 121310 | 124910 |
| Base 11 | a0311 | a3611 |
| Base 12 | 85112 | 88112 |
| Base 13 | 72413 | 75113 |
| Base 14 | 62914 | 65314 |
| Base 15 | 55d15 | 58415 |
| Base 16 | 4bd16 | 4e116 |