Compare 639669 vs 639671
| Property | 639669 | 639671 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 31 × 2132231 | 6396711 |
| Prime factorization | 3 × 213223 | 639671 |
| Divisors count | 4 | 2 |
| Divisors | 1, 3, 213223, 639669 | 1, 639671 |
| Number of properties | 1 | 3 |
| Isolated primes | 40795th | |
| Primes | 52050th | |
| Semiprimes | 137073rd | |
| Sexy primes (1st member) | 11280th | |
| Roman numberals | ||
| Base 2 | 100111000010101101012 | 100111000010101101112 |
| Base 3 | 10121111101103 | 10121111101123 |
| Base 4 | 21300223114 | 21300223134 |
| Base 5 | 1304321345 | 1304321415 |
| Base 6 | 214132336 | 214132356 |
| Base 7 | 53026327 | 53026347 |
| Base 8 | 23412658 | 23412678 |
| Base 9 | 11744139 | 11744159 |
| Base 10 | 63966910 | 63967110 |
| Base 11 | 3a765811 | 3a765a11 |
| Base 12 | 26a21912 | 26a21b12 |
| Base 13 | 19520413 | 19520613 |
| Base 14 | 12918914 | 12918b14 |
| Base 15 | c97e915 | c97eb15 |
| Base 16 | 9c2b516 | 9c2b716 |