Compare 2531 vs 9901
| Property | 2531 | 9901 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 25311 | 99011 |
| Prime factorization | 2531 | 9901 |
| Divisors count | 2 | 2 |
| Divisors | 1, 2531 | 1, 9901 |
| Number of properties | 7 | 7 |
| Additive primes | 193rd | 585th |
| Centered decagonal primes | 16th | 26th |
| Chen primes | 223rd | 630th |
| Good primes | 72nd | |
| Harmonic primes | 139th | |
| Isolated primes | 227th | 814th |
| Primes | 370th | 1221st |
| Pythagorean primes | 605th | |
| Sexy primes (1st member) | 409th | |
| Roman numberals | MMDXXXI | |
| Base 2 | 1001111000112 | 100110101011012 |
| Base 3 | 101102023 | 1111202013 |
| Base 4 | 2132034 | 21222314 |
| Base 5 | 401115 | 3041015 |
| Base 6 | 154156 | 1135016 |
| Base 7 | 102447 | 406037 |
| Base 8 | 47438 | 232558 |
| Base 9 | 34229 | 145219 |
| Base 10 | 253110 | 990110 |
| Base 11 | 19a111 | 749111 |
| Base 12 | 156b12 | 589112 |
| Base 13 | 11c913 | 467813 |
| Base 14 | ccb14 | 387314 |
| Base 15 | b3b15 | 2e0115 |
| Base 16 | 9e316 | 26ad16 |