Compare 1987 vs 2281
| Property | 1987 | 2281 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 19871 | 22811 |
| Prime factorization | 1987 | 2281 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1987 | 1, 2281 |
| Number of properties | 6 | 8 |
| Additive primes | 178th | |
| Chen primes | 207th | |
| Good primes | 62nd | |
| Isolated primes | 181st | 202nd |
| Lucky primes | 70th | 77th |
| Primes | 300th | 339th |
| Pythagorean primes | 165th | |
| Sexy primes (1st member) | 127th | 139th |
| Sexy prime triplets (1st member) | 50th | 52nd |
| Roman numberals | MCMLXXXVII | MMCCLXXXI |
| Base 2 | 111110000112 | 1000111010012 |
| Base 3 | 22011213 | 100101113 |
| Base 4 | 1330034 | 2032214 |
| Base 5 | 304225 | 331115 |
| Base 6 | 131116 | 143216 |
| Base 7 | 55367 | 64367 |
| Base 8 | 37038 | 43518 |
| Base 9 | 26479 | 31149 |
| Base 10 | 198710 | 228110 |
| Base 11 | 154711 | 179411 |
| Base 12 | 119712 | 13a112 |
| Base 13 | b9b13 | 106613 |
| Base 14 | a1d14 | b8d14 |
| Base 15 | 8c715 | a2115 |
| Base 16 | 7c316 | 8e916 |