Compare 640973 vs 640985
| Property | 640973 | 640985 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 6409731 | 51 × 171 × 75411 |
| Prime factorization | 640973 | 5 × 17 × 7541 |
| Divisors count | 2 | 8 |
| Divisors | 1, 640973 | 1, 5, 17, 85, 7541, 37705, 128197, 640985 |
| Number of properties | 4 | 0 |
| Additive primes | 20380th | |
| Isolated primes | 40875th | |
| Primes | 52150th | |
| Sexy primes (2nd member) | 11301st | |
| Roman numberals | ||
| Base 2 | 100111000111110011012 | 100111000111110110012 |
| Base 3 | 10121200202023 | 10121200210123 |
| Base 4 | 21301330314 | 21301331214 |
| Base 5 | 1310023435 | 1310024205 |
| Base 6 | 214232456 | 214233056 |
| Base 7 | 53065047 | 53065227 |
| Base 8 | 23437158 | 23437318 |
| Base 9 | 11762229 | 11762359 |
| Base 10 | 64097310 | 64098510 |
| Base 11 | 3a863311 | 3a864411 |
| Base 12 | 26ab2512 | 26ab3512 |
| Base 13 | 19599813 | 1959a713 |
| Base 14 | 12983b14 | 12984914 |
| Base 15 | c9db815 | c9dc515 |
| Base 16 | 9c7cd16 | 9c7d916 |