Compare 639731 vs 639743
| Property | 639731 | 639743 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6397311 | 131 × 492111 |
| Prime factorization | 639731 | 13 × 49211 |
| Divisors count | 2 | 4 |
| Divisors | 1, 639731 | 1, 13, 49211, 639743 |
| Number of properties | 4 | 1 |
| Additive primes | 20343rd | |
| Chen primes | 20367th | |
| Isolated primes | 40800th | |
| Primes | 52059th | |
| Semiprimes | 137083rd | |
| Roman numberals | ||
| Base 2 | 100111000010111100112 | 100111000010111111112 |
| Base 3 | 10121111122023 | 10121111200123 |
| Base 4 | 21300233034 | 21300233334 |
| Base 5 | 1304324115 | 1304324335 |
| Base 6 | 214134156 | 214134356 |
| Base 7 | 53030517 | 53030667 |
| Base 8 | 23413638 | 23413778 |
| Base 9 | 11744829 | 11745059 |
| Base 10 | 63973110 | 63974310 |
| Base 11 | 3a770411 | 3a771511 |
| Base 12 | 26a26b12 | 26a27b12 |
| Base 13 | 19525113 | 19526013 |
| Base 14 | 1291d114 | 1291dd14 |
| Base 15 | c983b15 | c984815 |
| Base 16 | 9c2f316 | 9c2ff16 |