Compare 640531 vs 640540
| Property | 640531 | 640540 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 4 |
| Prime factorization | 6405311 | 22 × 51 × 320271 |
| Prime factorization | 640531 | 2 × 2 × 5 × 32027 |
| Divisors count | 2 | 12 |
| Divisors | 1, 640531 | 1, 2, 4, 5, 10, 20, 32027, 64054, 128108, 160135, 320270, 640540 |
| Number of properties | 3 | 0 |
| Additive primes | 20367th | |
| Primes | 52116th | |
| Twin primes (2nd member) | 5637th | |
| Roman numberals | ||
| Base 2 | 100111000110000100112 | 100111000110000111002 |
| Base 3 | 10121121221013 | 10121121222013 |
| Base 4 | 21301201034 | 21301201304 |
| Base 5 | 1304441115 | 1304441305 |
| Base 6 | 214212316 | 214212446 |
| Base 7 | 53053037 | 53053157 |
| Base 8 | 23430238 | 23430348 |
| Base 9 | 11755719 | 11755819 |
| Base 10 | 64053110 | 64054010 |
| Base 11 | 3a827111 | 3a827a11 |
| Base 12 | 26a81712 | 26a82412 |
| Base 13 | 19571813 | 19572413 |
| Base 14 | 12960314 | 12960c14 |
| Base 15 | c9bc115 | c9bca15 |
| Base 16 | 9c61316 | 9c61c16 |