Compare 1212 vs 1213
| Property | 1212 | 1213 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 22 × 31 × 1011 | 12131 |
| Prime factorization | 2 × 2 × 3 × 101 | 1213 |
| Divisors count | 12 | 2 |
| Divisors | 1, 2, 3, 4, 6, 12, 101, 202, 303, 404, 606, 1212 | 1, 1213 |
| Number of properties | 0 | 7 |
| Additive primes | 106th | |
| Cousin primes (1st member) | 45th | |
| Emirps | 52nd | |
| Good primes | 49th | |
| Isolated primes | 117th | |
| Primes | 198th | |
| Pythagorean primes | 97th | |
| Roman numberals | MCCXII | MCCXIII |
| Base 2 | 100101111002 | 100101111012 |
| Base 3 | 11222203 | 11222213 |
| Base 4 | 1023304 | 1023314 |
| Base 5 | 143225 | 143235 |
| Base 6 | 53406 | 53416 |
| Base 7 | 33517 | 33527 |
| Base 8 | 22748 | 22758 |
| Base 9 | 15869 | 15879 |
| Base 10 | 121210 | 121310 |
| Base 11 | a0211 | a0311 |
| Base 12 | 85012 | 85112 |
| Base 13 | 72313 | 72413 |
| Base 14 | 62814 | 62914 |
| Base 15 | 55c15 | 55d15 |
| Base 16 | 4bc16 | 4bd16 |