Compare 1597 vs 1993
| Property | 1597 | 1993 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 15971 | 19931 | 
| Prime factorization | 1597 | 1993 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 1597 | 1, 1993 | 
| Number of properties | 9 | 10 | 
| Cousin primes (1st member) | 57th | 64th | 
| Emirps | 77th | |
| Fibonacci primes | 7th | |
| Good primes | 56th | 63rd | 
| Harmonic primes | 112th | |
| Isolated primes | 152nd | 182nd | 
| Lucky primes | 61st | |
| Primes | 251st | 301st | 
| Prime triplets (1st member) | 49th | |
| Pythagorean primes | 119th | 146th | 
| Sexy primes (1st member) | 128th | |
| Sexy primes (2nd member) | 127th | |
| Sexy prime triplets (2nd member) | 50th | |
| Super primes | 54th | |
| Roman numberals | MDXCVII | MCMXCIII | 
| Base 2 | 110001111012 | 111110010012 | 
| Base 3 | 20120113 | 22012113 | 
| Base 4 | 1203314 | 1330214 | 
| Base 5 | 223425 | 304335 | 
| Base 6 | 112216 | 131216 | 
| Base 7 | 44417 | 55457 | 
| Base 8 | 30758 | 37118 | 
| Base 9 | 21649 | 26549 | 
| Base 10 | 159710 | 199310 | 
| Base 11 | 122211 | 155211 | 
| Base 12 | b1112 | 11a112 | 
| Base 13 | 95b13 | ba413 | 
| Base 14 | 82114 | a2514 | 
| Base 15 | 71715 | 8cd15 | 
| Base 16 | 63d16 | 7c916 |