Compare 640045 vs 640049
| Property | 640045 | 640049 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 51 × 71 × 182871 | 6400491 |
| Prime factorization | 5 × 7 × 18287 | 640049 |
| Divisors count | 8 | 2 |
| Divisors | 1, 5, 7, 35, 18287, 91435, 128009, 640045 | 1, 640049 |
| Number of properties | 0 | 5 |
| Additive primes | 20354th | |
| Isolated primes | 40818th | |
| Primes | 52081st | |
| Sexy primes (2nd member) | 11285th | |
| Super primes | 5327th | |
| Roman numberals | ||
| Base 2 | 100111000100001011012 | 100111000100001100012 |
| Base 3 | 10121112221013 | 10121112221123 |
| Base 4 | 21301002314 | 21301003014 |
| Base 5 | 1304401405 | 1304401445 |
| Base 6 | 214151016 | 214151056 |
| Base 7 | 53040107 | 53040147 |
| Base 8 | 23420558 | 23420618 |
| Base 9 | 11748719 | 11748759 |
| Base 10 | 64004510 | 64004910 |
| Base 11 | 3a796a11 | 3a797311 |
| Base 12 | 26a49112 | 26a49512 |
| Base 13 | 19543313 | 19543713 |
| Base 14 | 12937714 | 12937b14 |
| Base 15 | c999a15 | c999e15 |
| Base 16 | 9c42d16 | 9c43116 |