Compare 1669 vs 1889
| Property | 1669 | 1889 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 16691 | 18891 |
| Prime factorization | 1669 | 1889 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1669 | 1, 1889 |
| Number of properties | 9 | 5 |
| Chen primes | 166th | 178th |
| Emirps | 81st | |
| Isolated primes | 175th | |
| Primes | 263rd | 290th |
| Prime triplets (3rd member) | 43rd | |
| Pythagorean primes | 126th | 140th |
| Sexy primes (2nd member) | 113th | |
| Sexy prime triplets (3rd member) | 43rd | |
| Sophie germain primes | 57th | |
| Super primes | 56th | |
| Twin primes (2nd member) | 53rd | |
| Roman numberals | MDCLXIX | MDCCCLXXXIX |
| Base 2 | 110100001012 | 111011000012 |
| Base 3 | 20212113 | 21202223 |
| Base 4 | 1220114 | 1312014 |
| Base 5 | 231345 | 300245 |
| Base 6 | 114216 | 124256 |
| Base 7 | 46037 | 53367 |
| Base 8 | 32058 | 35418 |
| Base 9 | 22549 | 25289 |
| Base 10 | 166910 | 188910 |
| Base 11 | 128811 | 146811 |
| Base 12 | b7112 | 111512 |
| Base 13 | 9b513 | b2413 |
| Base 14 | 87314 | 98d14 |
| Base 15 | 76415 | 85e15 |
| Base 16 | 68516 | 76116 |