Compare 1889 vs 1979
| Property | 1889 | 1979 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 18891 | 19791 |
| Prime factorization | 1889 | 1979 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1889 | 1, 1979 |
| Number of properties | 5 | 6 |
| Chen primes | 178th | 184th |
| Emirps | 96th | |
| Isolated primes | 175th | 180th |
| Long primes | 116th | |
| Primes | 290th | 299th |
| Pythagorean primes | 140th | |
| Sexy primes (2nd member) | 126th | |
| Sophie germain primes | 57th | |
| Roman numberals | MDCCCLXXXIX | MCMLXXIX |
| Base 2 | 111011000012 | 111101110112 |
| Base 3 | 21202223 | 22010223 |
| Base 4 | 1312014 | 1323234 |
| Base 5 | 300245 | 304045 |
| Base 6 | 124256 | 130556 |
| Base 7 | 53367 | 55257 |
| Base 8 | 35418 | 36738 |
| Base 9 | 25289 | 26389 |
| Base 10 | 188910 | 197910 |
| Base 11 | 146811 | 153a11 |
| Base 12 | 111512 | 118b12 |
| Base 13 | b2413 | b9313 |
| Base 14 | 98d14 | a1514 |
| Base 15 | 85e15 | 8be15 |
| Base 16 | 76116 | 7bb16 |