Compare 645489 vs 645493
| Property | 645489 | 645493 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 6 | 1 |
| Prime factorization | 34 × 131 × 6131 | 6454931 |
| Prime factorization | 3 × 3 × 3 × 3 × 13 × 613 | 645493 |
| Divisors count | 20 | 2 |
| Divisors | 1, 3, 9, 13, 27, 39, 81, 117, 351, 613, 1053, 1839, 5517, 7969, 16551, 23907, 49653, 71721, 215163, 645489 | 1, 645493 |
| Number of properties | 0 | 6 |
| Additive primes | 20516th | |
| Cousin primes (1st member) | 5667th | |
| Isolated primes | 41139th | |
| Primes | 52480th | |
| Prime triplets (1st member) | 2071st | |
| Sexy primes (1st member) | 11365th | |
| Roman numberals | ||
| Base 2 | 100111011001011100012 | 100111011001011101012 |
| Base 3 | 10122101100003 | 10122101100113 |
| Base 4 | 21312113014 | 21312113114 |
| Base 5 | 1311234245 | 1311234335 |
| Base 6 | 215002136 | 215002216 |
| Base 7 | 53256157 | 53256227 |
| Base 8 | 23545618 | 23545658 |
| Base 9 | 11834009 | 11834049 |
| Base 10 | 64548910 | 64549310 |
| Base 11 | 400a6911 | 400a7211 |
| Base 12 | 27166912 | 27167112 |
| Base 13 | 197a6013 | 197a6413 |
| Base 14 | 12b34514 | 12b34914 |
| Base 15 | cb3c915 | cb3cd15 |
| Base 16 | 9d97116 | 9d97516 |