Compare 639689 vs 639693
| Property | 639689 | 639693 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 4 |
| Total factors | 1 | 5 |
| Prime factorization | 6396891 | 32 × 171 × 371 × 1131 |
| Prime factorization | 639689 | 3 × 3 × 17 × 37 × 113 |
| Divisors count | 2 | 24 |
| Divisors | 1, 639689 | 1, 3, 9, 17, 37, 51, 111, 113, 153, 333, 339, 629, 1017, 1887, 1921, 4181, 5661, 5763, 12543, 17289, 37629, 71077, 213231, 639693 |
| Number of properties | 4 | 0 |
| Additive primes | 20341st | |
| Chen primes | 20364th | |
| Isolated primes | 40796th | |
| Primes | 52053rd | |
| Roman numberals | ||
| Base 2 | 100111000010110010012 | 100111000010110011012 |
| Base 3 | 10121111110123 | 10121111111003 |
| Base 4 | 21300230214 | 21300230314 |
| Base 5 | 1304322245 | 1304322335 |
| Base 6 | 214133056 | 214133136 |
| Base 7 | 53026617 | 53026657 |
| Base 8 | 23413118 | 23413158 |
| Base 9 | 11744359 | 11744409 |
| Base 10 | 63968910 | 63969310 |
| Base 11 | 3a767611 | 3a767a11 |
| Base 12 | 26a23512 | 26a23912 |
| Base 13 | 19521b13 | 19522213 |
| Base 14 | 1291a114 | 1291a514 |
| Base 15 | c980e15 | c981315 |
| Base 16 | 9c2c916 | 9c2cd16 |