Compare 640967 vs 640975
| Property | 640967 | 640975 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 2 |
| Total factors | 1 | 3 |
| Prime factorization | 6409671 | 52 × 256391 |
| Prime factorization | 640967 | 5 × 5 × 25639 |
| Divisors count | 2 | 6 |
| Divisors | 1, 640967 | 1, 5, 25, 25639, 128195, 640975 |
| Number of properties | 5 | 0 |
| Cousin primes (2nd member) | 5638th | |
| Isolated primes | 40874th | |
| Primes | 52149th | |
| Safe primes | 3022nd | |
| Sexy primes (1st member) | 11301st | |
| Roman numberals | ||
| Base 2 | 100111000111110001112 | 100111000111110011112 |
| Base 3 | 10121200201123 | 10121200202113 |
| Base 4 | 21301330134 | 21301330334 |
| Base 5 | 1310023325 | 1310024005 |
| Base 6 | 214232356 | 214232516 |
| Base 7 | 53064657 | 53065067 |
| Base 8 | 23437078 | 23437178 |
| Base 9 | 11762159 | 11762249 |
| Base 10 | 64096710 | 64097510 |
| Base 11 | 3a862811 | 3a863511 |
| Base 12 | 26ab1b12 | 26ab2712 |
| Base 13 | 19599213 | 19599a13 |
| Base 14 | 12983514 | 12983d14 |
| Base 15 | c9db215 | c9dba15 |
| Base 16 | 9c7c716 | 9c7cf16 |