Compare 639647 vs 639671
| Property | 639647 | 639671 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6396471 | 6396711 |
| Prime factorization | 639647 | 639671 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639647 | 1, 639671 |
| Number of properties | 4 | 3 |
| Centered heptagonal primes | 87th | |
| Chen primes | 20362nd | |
| Isolated primes | 40794th | 40795th |
| Primes | 52049th | 52050th |
| Sexy primes (1st member) | 11280th | |
| Roman numberals | ||
| Base 2 | 100111000010100111112 | 100111000010101101112 |
| Base 3 | 10121111021223 | 10121111101123 |
| Base 4 | 21300221334 | 21300223134 |
| Base 5 | 1304320425 | 1304321415 |
| Base 6 | 214131556 | 214132356 |
| Base 7 | 53026017 | 53026347 |
| Base 8 | 23412378 | 23412678 |
| Base 9 | 11743789 | 11744159 |
| Base 10 | 63964710 | 63967110 |
| Base 11 | 3a763811 | 3a765a11 |
| Base 12 | 26a1bb12 | 26a21b12 |
| Base 13 | 1951b813 | 19520613 |
| Base 14 | 12917114 | 12918b14 |
| Base 15 | c97d215 | c97eb15 |
| Base 16 | 9c29f16 | 9c2b716 |