Compare 1993 vs 2005
| Property | 1993 | 2005 | 
|---|---|---|
| Type | prime | semiprime | 
| Unique factors | 1 | 2 | 
| Total factors | 1 | 2 | 
| Prime factorization | 19931 | 51 × 4011 | 
| Prime factorization | 1993 | 5 × 401 | 
| Divisors count | 2 | 4 | 
| Divisors | 1, 1993 | 1, 5, 401, 2005 | 
| Number of properties | 10 | 1 | 
| Cousin primes (1st member) | 64th | |
| Good primes | 63rd | |
| Harmonic primes | 112th | |
| Isolated primes | 182nd | |
| Primes | 301st | |
| Prime triplets (1st member) | 49th | |
| Pythagorean primes | 146th | |
| Semiprimes | 578th | |
| Sexy primes (1st member) | 128th | |
| Sexy primes (2nd member) | 127th | |
| Sexy prime triplets (2nd member) | 50th | |
| Roman numberals | MCMXCIII | MMV | 
| Base 2 | 111110010012 | 111110101012 | 
| Base 3 | 22012113 | 22020213 | 
| Base 4 | 1330214 | 1331114 | 
| Base 5 | 304335 | 310105 | 
| Base 6 | 131216 | 131416 | 
| Base 7 | 55457 | 55637 | 
| Base 8 | 37118 | 37258 | 
| Base 9 | 26549 | 26679 | 
| Base 10 | 199310 | 200510 | 
| Base 11 | 155211 | 156311 | 
| Base 12 | 11a112 | 11b112 | 
| Base 13 | ba413 | bb313 | 
| Base 14 | a2514 | a3314 | 
| Base 15 | 8cd15 | 8da15 | 
| Base 16 | 7c916 | 7d516 |