Compare 640061 vs 640064
| Property | 640061 | 640064 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 8 |
| Prime factorization | 6400611 | 26 × 731 × 1371 |
| Prime factorization | 640061 | 2 × 2 × 2 × 2 × 2 × 2 × 73 × 137 |
| Divisors count | 2 | 28 |
| Divisors | 1, 640061 | 1, 2, 4, 8, 16, 32, 64, 73, 137, 146, 274, 292, 548, 584, 1096, 1168, 2192, 2336, 4384, 4672, 8768, 10001, 20002, 40004, 80008, 160016, 320032, 640064 |
| Number of properties | 4 | 0 |
| Additive primes | 20355th | |
| Chen primes | 20380th | |
| Isolated primes | 40819th | |
| Primes | 52082nd | |
| Roman numberals | ||
| Base 2 | 100111000100001111012 | 100111000100010000002 |
| Base 3 | 10121112222223 | 10121120000023 |
| Base 4 | 21301003314 | 21301010004 |
| Base 5 | 1304402215 | 1304402245 |
| Base 6 | 214151256 | 214151326 |
| Base 7 | 53040327 | 53040357 |
| Base 8 | 23420758 | 23421008 |
| Base 9 | 11748889 | 11750029 |
| Base 10 | 64006110 | 64006410 |
| Base 11 | 3a798411 | 3a798711 |
| Base 12 | 26a4a512 | 26a4a812 |
| Base 13 | 19544613 | 19544913 |
| Base 14 | 12938914 | 12938c14 |
| Base 15 | c99ab15 | c99ae15 |
| Base 16 | 9c43d16 | 9c44016 |