Compare 1987 vs 1994
| Property | 1987 | 1994 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 19871 | 21 × 9971 |
| Prime factorization | 1987 | 2 × 997 |
| Divisors count | 2 | 4 |
| Divisors | 1, 1987 | 1, 2, 997, 1994 |
| Number of properties | 6 | 1 |
| Good primes | 62nd | |
| Isolated primes | 181st | |
| Lucky primes | 70th | |
| Primes | 300th | |
| Semiprimes | 577th | |
| Sexy primes (1st member) | 127th | |
| Sexy prime triplets (1st member) | 50th | |
| Roman numberals | MCMLXXXVII | MCMXCIV |
| Base 2 | 111110000112 | 111110010102 |
| Base 3 | 22011213 | 22012123 |
| Base 4 | 1330034 | 1330224 |
| Base 5 | 304225 | 304345 |
| Base 6 | 131116 | 131226 |
| Base 7 | 55367 | 55467 |
| Base 8 | 37038 | 37128 |
| Base 9 | 26479 | 26559 |
| Base 10 | 198710 | 199410 |
| Base 11 | 154711 | 155311 |
| Base 12 | 119712 | 11a212 |
| Base 13 | b9b13 | ba513 |
| Base 14 | a1d14 | a2614 |
| Base 15 | 8c715 | 8ce15 |
| Base 16 | 7c316 | 7ca16 |