Compare 1289 vs 1889
| Property | 1289 | 1889 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 12891 | 18891 |
| Prime factorization | 1289 | 1889 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1289 | 1, 1889 |
| Number of properties | 7 | 5 |
| Chen primes | 136th | 178th |
| Isolated primes | 175th | |
| Primes | 209th | 290th |
| Pythagorean primes | 103rd | 140th |
| Sexy primes (2nd member) | 90th | |
| Sexy prime triplets (3rd member) | 34th | |
| Sophie germain primes | 45th | 57th |
| Twin primes (1st member) | 44th | |
| Roman numberals | MCCLXXXIX | MDCCCLXXXIX |
| Base 2 | 101000010012 | 111011000012 |
| Base 3 | 12022023 | 21202223 |
| Base 4 | 1100214 | 1312014 |
| Base 5 | 201245 | 300245 |
| Base 6 | 55456 | 124256 |
| Base 7 | 35217 | 53367 |
| Base 8 | 24118 | 35418 |
| Base 9 | 16829 | 25289 |
| Base 10 | 128910 | 188910 |
| Base 11 | a7211 | 146811 |
| Base 12 | 8b512 | 111512 |
| Base 13 | 78213 | b2413 |
| Base 14 | 68114 | 98d14 |
| Base 15 | 5ae15 | 85e15 |
| Base 16 | 50916 | 76116 |