Compare 1213 vs 1219
| Property | 1213 | 1219 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 12131 | 231 × 531 |
| Prime factorization | 1213 | 23 × 53 |
| Divisors count | 2 | 4 |
| Divisors | 1, 1213 | 1, 23, 53, 1219 |
| Number of properties | 7 | 1 |
| Additive primes | 106th | |
| Cousin primes (1st member) | 45th | |
| Emirps | 52nd | |
| Good primes | 49th | |
| Isolated primes | 117th | |
| Primes | 198th | |
| Pythagorean primes | 97th | |
| Semiprimes | 360th | |
| Roman numberals | MCCXIII | MCCXIX |
| Base 2 | 100101111012 | 100110000112 |
| Base 3 | 11222213 | 12000113 |
| Base 4 | 1023314 | 1030034 |
| Base 5 | 143235 | 143345 |
| Base 6 | 53416 | 53516 |
| Base 7 | 33527 | 33617 |
| Base 8 | 22758 | 23038 |
| Base 9 | 15879 | 16049 |
| Base 10 | 121310 | 121910 |
| Base 11 | a0311 | a0911 |
| Base 12 | 85112 | 85712 |
| Base 13 | 72413 | 72a13 |
| Base 14 | 62914 | 63114 |
| Base 15 | 55d15 | 56415 |
| Base 16 | 4bd16 | 4c316 |