Compare 639634 vs 639637
| Property | 639634 | 639637 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 21 × 3198171 | 6396371 |
| Prime factorization | 2 × 319817 | 639637 |
| Divisors count | 4 | 2 |
| Divisors | 1, 2, 319817, 639634 | 1, 639637 |
| Number of properties | 1 | 3 |
| Isolated primes | 40793rd | |
| Primes | 52048th | |
| Semiprimes | 137062nd | |
| Sexy primes (2nd member) | 11279th | |
| Roman numberals | ||
| Base 2 | 100111000010100100102 | 100111000010100101012 |
| Base 3 | 10121111020113 | 10121111020213 |
| Base 4 | 21300221024 | 21300221114 |
| Base 5 | 1304320145 | 1304320225 |
| Base 6 | 214131346 | 214131416 |
| Base 7 | 53025527 | 53025557 |
| Base 8 | 23412228 | 23412258 |
| Base 9 | 11743649 | 11743679 |
| Base 10 | 63963410 | 63963710 |
| Base 11 | 3a762611 | 3a762911 |
| Base 12 | 26a1aa12 | 26a1b112 |
| Base 13 | 1951a813 | 1951ab13 |
| Base 14 | 12916214 | 12916514 |
| Base 15 | c97c415 | c97c715 |
| Base 16 | 9c29216 | 9c29516 |