Compare 639647 vs 639941
| Property | 639647 | 639941 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6396471 | 6399411 |
| Prime factorization | 639647 | 639941 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639647 | 1, 639941 |
| Number of properties | 4 | 4 |
| Centered heptagonal primes | 87th | |
| Chen primes | 20362nd | 20374th |
| Cousin primes (2nd member) | 5631st | |
| Isolated primes | 40794th | 40809th |
| Primes | 52049th | 52070th |
| Roman numberals | ||
| Base 2 | 100111000010100111112 | 100111000011110001012 |
| Base 3 | 10121111021223 | 10121112111123 |
| Base 4 | 21300221334 | 21300330114 |
| Base 5 | 1304320425 | 1304342315 |
| Base 6 | 214131556 | 214144056 |
| Base 7 | 53026017 | 53035017 |
| Base 8 | 23412378 | 23417058 |
| Base 9 | 11743789 | 11747459 |
| Base 10 | 63964710 | 63994110 |
| Base 11 | 3a763811 | 3a788511 |
| Base 12 | 26a1bb12 | 26a40512 |
| Base 13 | 1951b813 | 19538313 |
| Base 14 | 12917114 | 12930114 |
| Base 15 | c97d215 | c992b15 |
| Base 16 | 9c29f16 | 9c3c516 |