Compare 1889 vs 1987
| Property | 1889 | 1987 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 18891 | 19871 |
| Prime factorization | 1889 | 1987 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1889 | 1, 1987 |
| Number of properties | 5 | 6 |
| Chen primes | 178th | |
| Good primes | 62nd | |
| Isolated primes | 175th | 181st |
| Lucky primes | 70th | |
| Primes | 290th | 300th |
| Pythagorean primes | 140th | |
| Sexy primes (1st member) | 127th | |
| Sexy prime triplets (1st member) | 50th | |
| Sophie germain primes | 57th | |
| Roman numberals | MDCCCLXXXIX | MCMLXXXVII |
| Base 2 | 111011000012 | 111110000112 |
| Base 3 | 21202223 | 22011213 |
| Base 4 | 1312014 | 1330034 |
| Base 5 | 300245 | 304225 |
| Base 6 | 124256 | 131116 |
| Base 7 | 53367 | 55367 |
| Base 8 | 35418 | 37038 |
| Base 9 | 25289 | 26479 |
| Base 10 | 188910 | 198710 |
| Base 11 | 146811 | 154711 |
| Base 12 | 111512 | 119712 |
| Base 13 | b2413 | b9b13 |
| Base 14 | 98d14 | a1d14 |
| Base 15 | 85e15 | 8c715 |
| Base 16 | 76116 | 7c316 |