Compare 1989 vs 1993
| Property | 1989 | 1993 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 32 × 131 × 171 | 19931 |
| Prime factorization | 3 × 3 × 13 × 17 | 1993 |
| Divisors count | 12 | 2 |
| Divisors | 1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989 | 1, 1993 |
| Number of properties | 0 | 10 |
| Cousin primes (1st member) | 64th | |
| Good primes | 63rd | |
| Harmonic primes | 112th | |
| Isolated primes | 182nd | |
| Primes | 301st | |
| Prime triplets (1st member) | 49th | |
| Pythagorean primes | 146th | |
| Sexy primes (1st member) | 128th | |
| Sexy primes (2nd member) | 127th | |
| Sexy prime triplets (2nd member) | 50th | |
| Roman numberals | MCMLXXXIX | MCMXCIII |
| Base 2 | 111110001012 | 111110010012 |
| Base 3 | 22012003 | 22012113 |
| Base 4 | 1330114 | 1330214 |
| Base 5 | 304245 | 304335 |
| Base 6 | 131136 | 131216 |
| Base 7 | 55417 | 55457 |
| Base 8 | 37058 | 37118 |
| Base 9 | 26509 | 26549 |
| Base 10 | 198910 | 199310 |
| Base 11 | 154911 | 155211 |
| Base 12 | 119912 | 11a112 |
| Base 13 | ba013 | ba413 |
| Base 14 | a2114 | a2514 |
| Base 15 | 8c915 | 8cd15 |
| Base 16 | 7c516 | 7c916 |