Compare 639941 vs 639947
| Property | 639941 | 639947 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 6399411 | 71 × 111 × 83111 |
| Prime factorization | 639941 | 7 × 11 × 8311 |
| Divisors count | 2 | 8 |
| Divisors | 1, 639941 | 1, 7, 11, 77, 8311, 58177, 91421, 639947 |
| Number of properties | 4 | 0 |
| Chen primes | 20374th | |
| Cousin primes (2nd member) | 5631st | |
| Isolated primes | 40809th | |
| Primes | 52070th | |
| Roman numberals | ||
| Base 2 | 100111000011110001012 | 100111000011110010112 |
| Base 3 | 10121112111123 | 10121112112023 |
| Base 4 | 21300330114 | 21300330234 |
| Base 5 | 1304342315 | 1304342425 |
| Base 6 | 214144056 | 214144156 |
| Base 7 | 53035017 | 53035107 |
| Base 8 | 23417058 | 23417138 |
| Base 9 | 11747459 | 11747529 |
| Base 10 | 63994110 | 63994710 |
| Base 11 | 3a788511 | 3a789011 |
| Base 12 | 26a40512 | 26a40b12 |
| Base 13 | 19538313 | 19538913 |
| Base 14 | 12930114 | 12930714 |
| Base 15 | c992b15 | c993215 |
| Base 16 | 9c3c516 | 9c3cb16 |