Compare 640019 vs 640049
| Property | 640019 | 640049 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6400191 | 6400491 |
| Prime factorization | 640019 | 640049 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640019 | 1, 640049 |
| Number of properties | 4 | 5 |
| Additive primes | 20354th | |
| Chen primes | 20379th | |
| Isolated primes | 40814th | 40818th |
| Primes | 52077th | 52081st |
| Safe primes | 3016th | |
| Sexy primes (2nd member) | 11285th | |
| Super primes | 5327th | |
| Roman numberals | ||
| Base 2 | 100111000100000100112 | 100111000100001100012 |
| Base 3 | 10121112211023 | 10121112221123 |
| Base 4 | 21301001034 | 21301003014 |
| Base 5 | 1304400345 | 1304401445 |
| Base 6 | 214150156 | 214151056 |
| Base 7 | 53036427 | 53040147 |
| Base 8 | 23420238 | 23420618 |
| Base 9 | 11748429 | 11748759 |
| Base 10 | 64001910 | 64004910 |
| Base 11 | 3a794611 | 3a797311 |
| Base 12 | 26a46b12 | 26a49512 |
| Base 13 | 19541313 | 19543713 |
| Base 14 | 12935914 | 12937b14 |
| Base 15 | c997e15 | c999e15 |
| Base 16 | 9c41316 | 9c43116 |