Compare 640013 vs 640021
| Property | 640013 | 640021 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 111 × 831 × 7011 | 231 × 278271 |
| Prime factorization | 11 × 83 × 701 | 23 × 27827 |
| Divisors count | 8 | 4 |
| Divisors | 1, 11, 83, 701, 913, 7711, 58183, 640013 | 1, 23, 27827, 640021 |
| Number of properties | 0 | 1 |
| Semiprimes | 137148th | |
| Roman numberals | ||
| Base 2 | 100111000100000011012 | 100111000100000101012 |
| Base 3 | 10121112210123 | 10121112211113 |
| Base 4 | 21301000314 | 21301001114 |
| Base 5 | 1304400235 | 1304400415 |
| Base 6 | 214150056 | 214150216 |
| Base 7 | 53036337 | 53036447 |
| Base 8 | 23420158 | 23420258 |
| Base 9 | 11748359 | 11748449 |
| Base 10 | 64001310 | 64002110 |
| Base 11 | 3a794011 | 3a794811 |
| Base 12 | 26a46512 | 26a47112 |
| Base 13 | 19540a13 | 19541513 |
| Base 14 | 12935314 | 12935b14 |
| Base 15 | c997815 | c998115 |
| Base 16 | 9c40d16 | 9c41516 |