Compare 664789 vs 664801
| Property | 664789 | 664801 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6647891 | 3891 × 17091 |
| Prime factorization | 664789 | 389 × 1709 |
| Divisors count | 2 | 4 |
| Divisors | 1, 664789 | 1, 389, 1709, 664801 |
| Number of properties | 4 | 1 |
| Cousin primes (1st member) | 5815th | |
| Isolated primes | 42288th | |
| Primes | 53933rd | |
| Semiprimes | 142212th | |
| Ulam primes | 3955th | |
| Roman numberals | ||
| Base 2 | 101000100100110101012 | 101000100100111000012 |
| Base 3 | 10202022202113 | 10202022210213 |
| Base 4 | 22021031114 | 22021032014 |
| Base 5 | 1322331245 | 1322332015 |
| Base 6 | 221254216 | 221254416 |
| Base 7 | 54361067 | 54361247 |
| Base 8 | 24223258 | 24223418 |
| Base 9 | 12228249 | 12228379 |
| Base 10 | 66478910 | 66480110 |
| Base 11 | 41451411 | 41452511 |
| Base 12 | 28087112 | 28088112 |
| Base 13 | 1a378813 | 1a379713 |
| Base 14 | 1343ad14 | 1343bb14 |
| Base 15 | d1e9415 | d1ea115 |
| Base 16 | a24d516 | a24e116 |