Compare 389 vs 457
| Property | 389 | 457 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 3891 | 4571 |
| Prime factorization | 389 | 457 |
| Divisors count | 2 | 2 |
| Divisors | 1, 389 | 1, 457 |
| Number of properties | 7 | 6 |
| Chen primes | 55th | |
| Cousin primes (1st member) | 24th | |
| Emirps | 20th | |
| Isolated primes | 36th | 43rd |
| Long primes | 29th | |
| Primes | 77th | 88th |
| Prime triplets (1st member) | 21st | |
| Pythagorean primes | 36th | 43rd |
| Sexy primes (1st member) | 45th | |
| Sexy primes (2nd member) | 42nd | |
| Roman numberals | CCCLXXXIX | CDLVII |
| Base 2 | 1100001012 | 1110010012 |
| Base 3 | 1121023 | 1212213 |
| Base 4 | 120114 | 130214 |
| Base 5 | 30245 | 33125 |
| Base 6 | 14456 | 20416 |
| Base 7 | 10647 | 12227 |
| Base 8 | 6058 | 7118 |
| Base 9 | 4729 | 5579 |
| Base 10 | 38910 | 45710 |
| Base 11 | 32411 | 38611 |
| Base 12 | 28512 | 32112 |
| Base 13 | 23c13 | 29213 |
| Base 14 | 1db14 | 24914 |
| Base 15 | 1ae15 | 20715 |
| Base 16 | 18516 | 1c916 |