Compare 668407 vs 668413
| Property | 668407 | 668413 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6684071 | 2511 × 26631 |
| Prime factorization | 668407 | 251 × 2663 |
| Divisors count | 2 | 4 |
| Divisors | 1, 668407 | 1, 251, 2663, 668413 |
| Number of properties | 3 | 1 |
| Additive primes | 21157th | |
| Isolated primes | 42492nd | |
| Primes | 54191st | |
| Semiprimes | 142967th | |
| Roman numberals | ||
| Base 2 | 101000110010111101112 | 101000110010111111012 |
| Base 3 | 10202212122113 | 10202212200013 |
| Base 4 | 22030233134 | 22030233314 |
| Base 5 | 1323421125 | 1323421235 |
| Base 6 | 221542516 | 221543016 |
| Base 7 | 54524657 | 54525047 |
| Base 8 | 24313678 | 24313758 |
| Base 9 | 12277849 | 12278019 |
| Base 10 | 66840710 | 66841310 |
| Base 11 | 41720311 | 41720911 |
| Base 12 | 28298712 | 28299112 |
| Base 13 | 1a530c13 | 1a531513 |
| Base 14 | 13583514 | 13583b14 |
| Base 15 | d30a715 | d30ad15 |
| Base 16 | a32f716 | a32fd16 |