Compare 1997 vs 2287
| Property | 1997 | 2287 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 19971 | 22871 |
| Prime factorization | 1997 | 2287 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1997 | 1, 2287 |
| Number of properties | 10 | 6 |
| Additive primes | 179th | |
| Chen primes | 185th | |
| Cousin primes (2nd member) | 64th | |
| Good primes | 64th | |
| Isolated primes | 203rd | |
| Left-truncatable primes | 62nd | |
| Primes | 302nd | 340th |
| Prime triplets (1st member) | 50th | |
| Prime triplets (2nd member) | 49th | |
| Pythagorean primes | 147th | |
| Sexy primes (1st member) | 129th | 140th |
| Sexy primes (2nd member) | 139th | |
| Sexy prime triplets (2nd member) | 52nd | |
| Twin primes (1st member) | 61st | |
| Roman numberals | MCMXCVII | MMCCLXXXVII |
| Base 2 | 111110011012 | 1000111011112 |
| Base 3 | 22012223 | 100102013 |
| Base 4 | 1330314 | 2032334 |
| Base 5 | 304425 | 331225 |
| Base 6 | 131256 | 143316 |
| Base 7 | 55527 | 64457 |
| Base 8 | 37158 | 43578 |
| Base 9 | 26589 | 31219 |
| Base 10 | 199710 | 228710 |
| Base 11 | 155611 | 179a11 |
| Base 12 | 11a512 | 13a712 |
| Base 13 | ba813 | 106c13 |
| Base 14 | a2914 | b9514 |
| Base 15 | 8d215 | a2715 |
| Base 16 | 7cd16 | 8ef16 |