Compare 1223 vs 1997
| Property | 1223 | 1997 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 12231 | 19971 |
| Prime factorization | 1223 | 1997 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1223 | 1, 1997 |
| Number of properties | 10 | 10 |
| Chen primes | 185th | |
| Cousin primes (2nd member) | 64th | |
| Emirps | 54th | |
| Good primes | 64th | |
| Harmonic primes | 70th | |
| Isolated primes | 119th | |
| Left-truncatable primes | 55th | 62nd |
| Long primes | 77th | |
| Primes | 200th | 302nd |
| Prime triplets (1st member) | 50th | |
| Prime triplets (2nd member) | 49th | |
| Pythagorean primes | 147th | |
| Sexy primes (1st member) | 87th | 129th |
| Sexy primes (2nd member) | 86th | |
| Sexy prime triplets (2nd member) | 33rd | |
| Sophie germain primes | 43rd | |
| Twin primes (1st member) | 61st | |
| Roman numberals | MCCXXIII | MCMXCVII |
| Base 2 | 100110001112 | 111110011012 |
| Base 3 | 12000223 | 22012223 |
| Base 4 | 1030134 | 1330314 |
| Base 5 | 143435 | 304425 |
| Base 6 | 53556 | 131256 |
| Base 7 | 33657 | 55527 |
| Base 8 | 23078 | 37158 |
| Base 9 | 16089 | 26589 |
| Base 10 | 122310 | 199710 |
| Base 11 | a1211 | 155611 |
| Base 12 | 85b12 | 11a512 |
| Base 13 | 73113 | ba813 |
| Base 14 | 63514 | a2914 |
| Base 15 | 56815 | 8d215 |
| Base 16 | 4c716 | 7cd16 |