Compare 639391 vs 639393
| Property | 639391 | 639393 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6393911 | 31 × 2131311 |
| Prime factorization | 639391 | 3 × 213131 |
| Divisors count | 2 | 4 |
| Divisors | 1, 639391 | 1, 3, 213131, 639393 |
| Number of properties | 4 | 1 |
| Additive primes | 20334th | |
| Chen primes | 20356th | |
| Isolated primes | 40779th | |
| Primes | 52030th | |
| Semiprimes | 137015th | |
| Roman numberals | ||
| Base 2 | 100111000001100111112 | 100111000001101000012 |
| Base 3 | 10121110020113 | 10121110020203 |
| Base 4 | 21300121334 | 21300122014 |
| Base 5 | 1304300315 | 1304300335 |
| Base 6 | 214120516 | 214120536 |
| Base 7 | 53020547 | 53020567 |
| Base 8 | 23406378 | 23406418 |
| Base 9 | 11740649 | 11740669 |
| Base 10 | 63939110 | 63939310 |
| Base 11 | 3a742511 | 3a742711 |
| Base 12 | 26a02712 | 26a02912 |
| Base 13 | 19504c13 | 19505113 |
| Base 14 | 12902b14 | 12902d14 |
| Base 15 | c96b115 | c96b315 |
| Base 16 | 9c19f16 | 9c1a116 |