Compare 639662 vs 639671
| Property | 639662 | 639671 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 21 × 3198311 | 6396711 |
| Prime factorization | 2 × 319831 | 639671 |
| Divisors count | 4 | 2 |
| Divisors | 1, 2, 319831, 639662 | 1, 639671 |
| Number of properties | 1 | 3 |
| Isolated primes | 40795th | |
| Primes | 52050th | |
| Semiprimes | 137071st | |
| Sexy primes (1st member) | 11280th | |
| Roman numberals | ||
| Base 2 | 100111000010101011102 | 100111000010101101112 |
| Base 3 | 10121111100123 | 10121111101123 |
| Base 4 | 21300222324 | 21300223134 |
| Base 5 | 1304321225 | 1304321415 |
| Base 6 | 214132226 | 214132356 |
| Base 7 | 53026227 | 53026347 |
| Base 8 | 23412568 | 23412678 |
| Base 9 | 11744059 | 11744159 |
| Base 10 | 63966210 | 63967110 |
| Base 11 | 3a765111 | 3a765a11 |
| Base 12 | 26a21212 | 26a21b12 |
| Base 13 | 1951ca13 | 19520613 |
| Base 14 | 12918214 | 12918b14 |
| Base 15 | c97e215 | c97eb15 |
| Base 16 | 9c2ae16 | 9c2b716 |