Compare 645493 vs 645494
| Property | 645493 | 645494 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6454931 | 21 × 3227471 |
| Prime factorization | 645493 | 2 × 322747 |
| Divisors count | 2 | 4 |
| Divisors | 1, 645493 | 1, 2, 322747, 645494 |
| Number of properties | 6 | 1 |
| Additive primes | 20516th | |
| Cousin primes (1st member) | 5667th | |
| Isolated primes | 41139th | |
| Primes | 52480th | |
| Prime triplets (1st member) | 2071st | |
| Semiprimes | 138269th | |
| Sexy primes (1st member) | 11365th | |
| Roman numberals | ||
| Base 2 | 100111011001011101012 | 100111011001011101102 |
| Base 3 | 10122101100113 | 10122101100123 |
| Base 4 | 21312113114 | 21312113124 |
| Base 5 | 1311234335 | 1311234345 |
| Base 6 | 215002216 | 215002226 |
| Base 7 | 53256227 | 53256237 |
| Base 8 | 23545658 | 23545668 |
| Base 9 | 11834049 | 11834059 |
| Base 10 | 64549310 | 64549410 |
| Base 11 | 400a7211 | 400a7311 |
| Base 12 | 27167112 | 27167212 |
| Base 13 | 197a6413 | 197a6513 |
| Base 14 | 12b34914 | 12b34a14 |
| Base 15 | cb3cd15 | cb3ce15 |
| Base 16 | 9d97516 | 9d97616 |