Compare 639941 vs 639946
| Property | 639941 | 639946 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6399411 | 21 × 3199731 |
| Prime factorization | 639941 | 2 × 319973 |
| Divisors count | 2 | 4 |
| Divisors | 1, 639941 | 1, 2, 319973, 639946 |
| Number of properties | 4 | 1 |
| Chen primes | 20374th | |
| Cousin primes (2nd member) | 5631st | |
| Isolated primes | 40809th | |
| Primes | 52070th | |
| Semiprimes | 137134th | |
| Roman numberals | ||
| Base 2 | 100111000011110001012 | 100111000011110010102 |
| Base 3 | 10121112111123 | 10121112112013 |
| Base 4 | 21300330114 | 21300330224 |
| Base 5 | 1304342315 | 1304342415 |
| Base 6 | 214144056 | 214144146 |
| Base 7 | 53035017 | 53035067 |
| Base 8 | 23417058 | 23417128 |
| Base 9 | 11747459 | 11747519 |
| Base 10 | 63994110 | 63994610 |
| Base 11 | 3a788511 | 3a788a11 |
| Base 12 | 26a40512 | 26a40a12 |
| Base 13 | 19538313 | 19538813 |
| Base 14 | 12930114 | 12930614 |
| Base 15 | c992b15 | c993115 |
| Base 16 | 9c3c516 | 9c3ca16 |