Compare 1213 vs 1213
| Property | 1213 | 1213 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 12131 | 12131 |
| Prime factorization | 1213 | 1213 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1213 | 1, 1213 |
| Number of properties | 7 | 7 |
| Additive primes | 106th | 106th |
| Cousin primes (1st member) | 45th | 45th |
| Emirps | 52nd | 52nd |
| Good primes | 49th | 49th |
| Isolated primes | 117th | 117th |
| Primes | 198th | 198th |
| Pythagorean primes | 97th | 97th |
| Roman numberals | MCCXIII | MCCXIII |
| Base 2 | 100101111012 | 100101111012 |
| Base 3 | 11222213 | 11222213 |
| Base 4 | 1023314 | 1023314 |
| Base 5 | 143235 | 143235 |
| Base 6 | 53416 | 53416 |
| Base 7 | 33527 | 33527 |
| Base 8 | 22758 | 22758 |
| Base 9 | 15879 | 15879 |
| Base 10 | 121310 | 121310 |
| Base 11 | a0311 | a0311 |
| Base 12 | 85112 | 85112 |
| Base 13 | 72413 | 72413 |
| Base 14 | 62914 | 62914 |
| Base 15 | 55d15 | 55d15 |
| Base 16 | 4bd16 | 4bd16 |