Compare 1889 vs 1931
| Property | 1889 | 1931 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 18891 | 19311 |
| Prime factorization | 1889 | 1931 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1889 | 1, 1931 |
| Number of properties | 5 | 5 |
| Chen primes | 178th | 182nd |
| Harmonic primes | 108th | |
| Isolated primes | 175th | |
| Primes | 290th | 294th |
| Pythagorean primes | 140th | |
| Sophie germain primes | 57th | 59th |
| Twin primes (1st member) | 59th | |
| Roman numberals | MDCCCLXXXIX | MCMXXXI |
| Base 2 | 111011000012 | 111100010112 |
| Base 3 | 21202223 | 21221123 |
| Base 4 | 1312014 | 1320234 |
| Base 5 | 300245 | 302115 |
| Base 6 | 124256 | 125356 |
| Base 7 | 53367 | 54267 |
| Base 8 | 35418 | 36138 |
| Base 9 | 25289 | 25759 |
| Base 10 | 188910 | 193110 |
| Base 11 | 146811 | 14a611 |
| Base 12 | 111512 | 114b12 |
| Base 13 | b2413 | b5713 |
| Base 14 | 98d14 | 9bd14 |
| Base 15 | 85e15 | 88b15 |
| Base 16 | 76116 | 78b16 |