Compare 664997 vs 665009
| Property | 664997 | 665009 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6649971 | 1091 × 61011 |
| Prime factorization | 664997 | 109 × 6101 |
| Divisors count | 2 | 4 |
| Divisors | 1, 664997 | 1, 109, 6101, 665009 |
| Number of properties | 3 | 1 |
| Additive primes | 21056th | |
| Isolated primes | 42298th | |
| Primes | 53945th | |
| Semiprimes | 142260th | |
| Roman numberals | ||
| Base 2 | 101000100101101001012 | 101000100101101100012 |
| Base 3 | 10202100121123 | 10202100122223 |
| Base 4 | 22021122114 | 22021123014 |
| Base 5 | 1322344425 | 1322400145 |
| Base 6 | 221304056 | 221304256 |
| Base 7 | 54365247 | 54365427 |
| Base 8 | 24226458 | 24226618 |
| Base 9 | 12231759 | 12231889 |
| Base 10 | 66499710 | 66500910 |
| Base 11 | 41469311 | 4146a411 |
| Base 12 | 280a0512 | 280a1512 |
| Base 13 | 1a38b813 | 1a38c713 |
| Base 14 | 1344bb14 | 1344c914 |
| Base 15 | d208215 | d208e15 |
| Base 16 | a25a516 | a25b116 |