Compare 1986 vs 1987
Property | 1986 | 1987 |
---|---|---|
Type | composite number | prime |
Unique factors | 3 | 1 |
Total factors | 3 | 1 |
Prime factorization | 21 × 31 × 3311 | 19871 |
Prime factorization | 2 × 3 × 331 | 1987 |
Divisors count | 8 | 2 |
Divisors | 1, 2, 3, 6, 331, 662, 993, 1986 | 1, 1987 |
Number of properties | 0 | 6 |
Good primes | 62nd | |
Isolated primes | 181st | |
Lucky primes | 70th | |
Primes | 300th | |
Sexy primes (1st member) | 127th | |
Sexy prime triplets (1st member) | 50th | |
Roman numberals | MCMLXXXVI | MCMLXXXVII |
Base 2 | 111110000102 | 111110000112 |
Base 3 | 22011203 | 22011213 |
Base 4 | 1330024 | 1330034 |
Base 5 | 304215 | 304225 |
Base 6 | 131106 | 131116 |
Base 7 | 55357 | 55367 |
Base 8 | 37028 | 37038 |
Base 9 | 26469 | 26479 |
Base 10 | 198610 | 198710 |
Base 11 | 154611 | 154711 |
Base 12 | 119612 | 119712 |
Base 13 | b9a13 | b9b13 |
Base 14 | a1c14 | a1d14 |
Base 15 | 8c615 | 8c715 |
Base 16 | 7c216 | 7c316 |