Compare 1987 vs 2311
| Property | 1987 | 2311 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 19871 | 23111 |
| Prime factorization | 1987 | 2311 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1987 | 1, 2311 |
| Number of properties | 6 | 6 |
| Additive primes | 180th | |
| Centered decagonal primes | 15th | |
| Euclid primes | 6th | |
| Good primes | 62nd | |
| Isolated primes | 181st | |
| Lucky primes | 70th | 78th |
| Primes | 300th | 344th |
| Sexy primes (1st member) | 127th | |
| Sexy prime triplets (1st member) | 50th | |
| Twin primes (2nd member) | 70th | |
| Roman numberals | MCMLXXXVII | MMCCCXI |
| Base 2 | 111110000112 | 1001000001112 |
| Base 3 | 22011213 | 100111213 |
| Base 4 | 1330034 | 2100134 |
| Base 5 | 304225 | 332215 |
| Base 6 | 131116 | 144116 |
| Base 7 | 55367 | 65117 |
| Base 8 | 37038 | 44078 |
| Base 9 | 26479 | 31479 |
| Base 10 | 198710 | 231110 |
| Base 11 | 154711 | 181111 |
| Base 12 | 119712 | 140712 |
| Base 13 | b9b13 | 108a13 |
| Base 14 | a1d14 | bb114 |
| Base 15 | 8c715 | a4115 |
| Base 16 | 7c316 | 90716 |