Compare 640193 vs 640199
| Property | 640193 | 640199 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6401931 | 71 × 914571 |
| Prime factorization | 640193 | 7 × 91457 |
| Divisors count | 2 | 4 |
| Divisors | 1, 640193 | 1, 7, 91457, 640199 |
| Number of properties | 3 | 1 |
| Additive primes | 20359th | |
| Isolated primes | 40827th | |
| Primes | 52092nd | |
| Semiprimes | 137184th | |
| Roman numberals | ||
| Base 2 | 100111000100110000012 | 100111000100110001112 |
| Base 3 | 10121120112123 | 10121120120023 |
| Base 4 | 21301030014 | 21301030134 |
| Base 5 | 1304412335 | 1304412445 |
| Base 6 | 214155056 | 214155156 |
| Base 7 | 53043117 | 53043207 |
| Base 8 | 23423018 | 23423078 |
| Base 9 | 11751559 | 11751629 |
| Base 10 | 64019310 | 64019910 |
| Base 11 | 3a7a9411 | 3a7a9a11 |
| Base 12 | 26a59512 | 26a59b12 |
| Base 13 | 19551813 | 19552113 |
| Base 14 | 12944114 | 12944714 |
| Base 15 | c9a4815 | c9a4e15 |
| Base 16 | 9c4c116 | 9c4c716 |