Compare 1549 vs 1993
| Property | 1549 | 1993 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 15491 | 19931 |
| Prime factorization | 1549 | 1993 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1549 | 1, 1993 |
| Number of properties | 7 | 10 |
| Additive primes | 133rd | |
| Cousin primes (1st member) | 54th | 64th |
| Good primes | 63rd | |
| Harmonic primes | 112th | |
| Isolated primes | 145th | 182nd |
| Long primes | 93rd | |
| Primes | 244th | 301st |
| Prime triplets (1st member) | 49th | |
| Pythagorean primes | 117th | 146th |
| Sexy primes (1st member) | 128th | |
| Sexy primes (2nd member) | 106th | 127th |
| Sexy prime triplets (2nd member) | 50th | |
| Roman numberals | MDXLIX | MCMXCIII |
| Base 2 | 110000011012 | 111110010012 |
| Base 3 | 20101013 | 22012113 |
| Base 4 | 1200314 | 1330214 |
| Base 5 | 221445 | 304335 |
| Base 6 | 111016 | 131216 |
| Base 7 | 43427 | 55457 |
| Base 8 | 30158 | 37118 |
| Base 9 | 21119 | 26549 |
| Base 10 | 154910 | 199310 |
| Base 11 | 118911 | 155211 |
| Base 12 | a9112 | 11a112 |
| Base 13 | 92213 | ba413 |
| Base 14 | 7c914 | a2514 |
| Base 15 | 6d415 | 8cd15 |
| Base 16 | 60d16 | 7c916 |