Compare 31121 vs 31223
| Property | 31121 | 31223 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 311211 | 312231 |
| Prime factorization | 31121 | 31223 |
| Divisors count | 2 | 2 |
| Divisors | 1, 31121 | 1, 31223 |
| Number of properties | 6 | 7 |
| Additive primes | 1521st | |
| Chen primes | 1602nd | |
| Cousin primes (2nd member) | 480th | |
| Emirps | 668th | 672nd |
| Good primes | 332nd | |
| Isolated primes | 2401st | |
| Left-truncatable primes | 188th | |
| Long primes | 1276th | |
| Primes | 3351st | 3364th |
| Pythagorean primes | 1668th | |
| Twin primes (1st member) | 480th | |
| Roman numberals | ||
| Base 2 | 1111001100100012 | 1111001111101112 |
| Base 3 | 11202001223 | 11202111023 |
| Base 4 | 132121014 | 132133134 |
| Base 5 | 14434415 | 14443435 |
| Base 6 | 4000256 | 4003156 |
| Base 7 | 1565067 | 1600137 |
| Base 8 | 746218 | 747678 |
| Base 9 | 466189 | 467429 |
| Base 10 | 3112110 | 3122310 |
| Base 11 | 2142211 | 2150511 |
| Base 12 | 1601512 | 1609b12 |
| Base 13 | 1121c13 | 1129a13 |
| Base 14 | b4ad14 | b54314 |
| Base 15 | 934b15 | 93b815 |
| Base 16 | 799116 | 79f716 |