Compare 1213 vs 1549
| Property | 1213 | 1549 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 12131 | 15491 |
| Prime factorization | 1213 | 1549 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1213 | 1, 1549 |
| Number of properties | 7 | 7 |
| Additive primes | 106th | 133rd |
| Cousin primes (1st member) | 45th | 54th |
| Emirps | 52nd | |
| Good primes | 49th | |
| Isolated primes | 117th | 145th |
| Long primes | 93rd | |
| Primes | 198th | 244th |
| Pythagorean primes | 97th | 117th |
| Sexy primes (2nd member) | 106th | |
| Roman numberals | MCCXIII | MDXLIX |
| Base 2 | 100101111012 | 110000011012 |
| Base 3 | 11222213 | 20101013 |
| Base 4 | 1023314 | 1200314 |
| Base 5 | 143235 | 221445 |
| Base 6 | 53416 | 111016 |
| Base 7 | 33527 | 43427 |
| Base 8 | 22758 | 30158 |
| Base 9 | 15879 | 21119 |
| Base 10 | 121310 | 154910 |
| Base 11 | a0311 | 118911 |
| Base 12 | 85112 | a9112 |
| Base 13 | 72413 | 92213 |
| Base 14 | 62914 | 7c914 |
| Base 15 | 55d15 | 6d415 |
| Base 16 | 4bd16 | 60d16 |