Compare 1481 vs 1993
| Property | 1481 | 1993 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 14811 | 19931 | 
| Prime factorization | 1481 | 1993 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 1481 | 1, 1993 | 
| Number of properties | 13 | 10 | 
| Chen primes | 152nd | |
| Cousin primes (1st member) | 64th | |
| Good primes | 63rd | |
| Happy primes | 46th | |
| Harmonic primes | 80th | 112th | 
| Isolated primes | 182nd | |
| Primes | 234th | 301st | 
| Prime quadruplets (1st member) | 6th | |
| Prime quintuplet 2s (1st member) | 4th | |
| Prime triplets (1st member) | 39th | 49th | 
| Pythagorean primes | 114th | 146th | 
| Sexy primes (1st member) | 102nd | 128th | 
| Sexy primes (2nd member) | 127th | |
| Sexy prime quadrupletss (1st member) | 9th | |
| Sexy prime triplets (1st member) | 39th | |
| Sexy prime triplets (2nd member) | 50th | |
| Sophie germain primes | 49th | |
| Twin primes (1st member) | 49th | |
| Roman numberals | MCDLXXXI | MCMXCIII | 
| Base 2 | 101110010012 | 111110010012 | 
| Base 3 | 20002123 | 22012113 | 
| Base 4 | 1130214 | 1330214 | 
| Base 5 | 214115 | 304335 | 
| Base 6 | 105056 | 131216 | 
| Base 7 | 42147 | 55457 | 
| Base 8 | 27118 | 37118 | 
| Base 9 | 20259 | 26549 | 
| Base 10 | 148110 | 199310 | 
| Base 11 | 112711 | 155211 | 
| Base 12 | a3512 | 11a112 | 
| Base 13 | 89c13 | ba413 | 
| Base 14 | 77b14 | a2514 | 
| Base 15 | 68b15 | 8cd15 | 
| Base 16 | 5c916 | 7c916 |