Compare 1993 vs 2531
| Property | 1993 | 2531 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 19931 | 25311 |
| Prime factorization | 1993 | 2531 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1993 | 1, 2531 |
| Number of properties | 10 | 7 |
| Additive primes | 193rd | |
| Centered decagonal primes | 16th | |
| Chen primes | 223rd | |
| Cousin primes (1st member) | 64th | |
| Good primes | 63rd | 72nd |
| Harmonic primes | 112th | 139th |
| Isolated primes | 182nd | 227th |
| Primes | 301st | 370th |
| Prime triplets (1st member) | 49th | |
| Pythagorean primes | 146th | |
| Sexy primes (1st member) | 128th | |
| Sexy primes (2nd member) | 127th | |
| Sexy prime triplets (2nd member) | 50th | |
| Roman numberals | MCMXCIII | MMDXXXI |
| Base 2 | 111110010012 | 1001111000112 |
| Base 3 | 22012113 | 101102023 |
| Base 4 | 1330214 | 2132034 |
| Base 5 | 304335 | 401115 |
| Base 6 | 131216 | 154156 |
| Base 7 | 55457 | 102447 |
| Base 8 | 37118 | 47438 |
| Base 9 | 26549 | 34229 |
| Base 10 | 199310 | 253110 |
| Base 11 | 155211 | 19a111 |
| Base 12 | 11a112 | 156b12 |
| Base 13 | ba413 | 11c913 |
| Base 14 | a2514 | ccb14 |
| Base 15 | 8cd15 | b3b15 |
| Base 16 | 7c916 | 9e316 |