Compare 1987 vs 1997
Property | 1987 | 1997 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 19871 | 19971 |
Prime factorization | 1987 | 1997 |
Divisors count | 2 | 2 |
Divisors | 1, 1987 | 1, 1997 |
Number of properties | 6 | 10 |
Chen primes | 185th | |
Cousin primes (2nd member) | 64th | |
Good primes | 62nd | 64th |
Isolated primes | 181st | |
Left-truncatable primes | 62nd | |
Lucky primes | 70th | |
Primes | 300th | 302nd |
Prime triplets (1st member) | 50th | |
Prime triplets (2nd member) | 49th | |
Pythagorean primes | 147th | |
Sexy primes (1st member) | 127th | 129th |
Sexy prime triplets (1st member) | 50th | |
Twin primes (1st member) | 61st | |
Roman numberals | MCMLXXXVII | MCMXCVII |
Base 2 | 111110000112 | 111110011012 |
Base 3 | 22011213 | 22012223 |
Base 4 | 1330034 | 1330314 |
Base 5 | 304225 | 304425 |
Base 6 | 131116 | 131256 |
Base 7 | 55367 | 55527 |
Base 8 | 37038 | 37158 |
Base 9 | 26479 | 26589 |
Base 10 | 198710 | 199710 |
Base 11 | 154711 | 155611 |
Base 12 | 119712 | 11a512 |
Base 13 | b9b13 | ba813 |
Base 14 | a1d14 | a2914 |
Base 15 | 8c715 | 8d215 |
Base 16 | 7c316 | 7cd16 |