Compare 1982 vs 1987
| Property | 1982 | 1987 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 21 × 9911 | 19871 |
| Prime factorization | 2 × 991 | 1987 |
| Divisors count | 4 | 2 |
| Divisors | 1, 2, 991, 1982 | 1, 1987 |
| Number of properties | 1 | 6 |
| Good primes | 62nd | |
| Isolated primes | 181st | |
| Lucky primes | 70th | |
| Primes | 300th | |
| Semiprimes | 573rd | |
| Sexy primes (1st member) | 127th | |
| Sexy prime triplets (1st member) | 50th | |
| Roman numberals | MCMLXXXII | MCMLXXXVII |
| Base 2 | 111101111102 | 111110000112 |
| Base 3 | 22011023 | 22011213 |
| Base 4 | 1323324 | 1330034 |
| Base 5 | 304125 | 304225 |
| Base 6 | 131026 | 131116 |
| Base 7 | 55317 | 55367 |
| Base 8 | 36768 | 37038 |
| Base 9 | 26429 | 26479 |
| Base 10 | 198210 | 198710 |
| Base 11 | 154211 | 154711 |
| Base 12 | 119212 | 119712 |
| Base 13 | b9613 | b9b13 |
| Base 14 | a1814 | a1d14 |
| Base 15 | 8c215 | 8c715 |
| Base 16 | 7be16 | 7c316 |