Compare 2521 vs 2531
| Property | 2521 | 2531 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 25211 | 25311 |
| Prime factorization | 2521 | 2531 |
| Divisors count | 2 | 2 |
| Divisors | 1, 2521 | 1, 2531 |
| Number of properties | 6 | 7 |
| Additive primes | 193rd | |
| Centered decagonal primes | 16th | |
| Centered square primes | 18th | |
| Chen primes | 223rd | |
| Good primes | 71st | 72nd |
| Harmonic primes | 138th | 139th |
| Isolated primes | 226th | 227th |
| Primes | 369th | 370th |
| Pythagorean primes | 181st | |
| Roman numberals | MMDXXI | MMDXXXI |
| Base 2 | 1001110110012 | 1001111000112 |
| Base 3 | 101101013 | 101102023 |
| Base 4 | 2131214 | 2132034 |
| Base 5 | 400415 | 401115 |
| Base 6 | 154016 | 154156 |
| Base 7 | 102317 | 102447 |
| Base 8 | 47318 | 47438 |
| Base 9 | 34119 | 34229 |
| Base 10 | 252110 | 253110 |
| Base 11 | 199211 | 19a111 |
| Base 12 | 156112 | 156b12 |
| Base 13 | 11bc13 | 11c913 |
| Base 14 | cc114 | ccb14 |
| Base 15 | b3115 | b3b15 |
| Base 16 | 9d916 | 9e316 |