Compare 1985 vs 1997
Property | 1985 | 1997 |
---|---|---|
Type | semiprime | prime |
Unique factors | 2 | 1 |
Total factors | 2 | 1 |
Prime factorization | 51 × 3971 | 19971 |
Prime factorization | 5 × 397 | 1997 |
Divisors count | 4 | 2 |
Divisors | 1, 5, 397, 1985 | 1, 1997 |
Number of properties | 1 | 10 |
Chen primes | 185th | |
Cousin primes (2nd member) | 64th | |
Good primes | 64th | |
Left-truncatable primes | 62nd | |
Primes | 302nd | |
Prime triplets (1st member) | 50th | |
Prime triplets (2nd member) | 49th | |
Pythagorean primes | 147th | |
Semiprimes | 575th | |
Sexy primes (1st member) | 129th | |
Twin primes (1st member) | 61st | |
Roman numberals | MCMLXXXV | MCMXCVII |
Base 2 | 111110000012 | 111110011012 |
Base 3 | 22011123 | 22012223 |
Base 4 | 1330014 | 1330314 |
Base 5 | 304205 | 304425 |
Base 6 | 131056 | 131256 |
Base 7 | 55347 | 55527 |
Base 8 | 37018 | 37158 |
Base 9 | 26459 | 26589 |
Base 10 | 198510 | 199710 |
Base 11 | 154511 | 155611 |
Base 12 | 119512 | 11a512 |
Base 13 | b9913 | ba813 |
Base 14 | a1b14 | a2914 |
Base 15 | 8c515 | 8d215 |
Base 16 | 7c116 | 7cd16 |