Compare 668009 vs 668407
| Property | 668009 | 668407 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6680091 | 6684071 |
| Prime factorization | 668009 | 668407 |
| Divisors count | 2 | 2 |
| Divisors | 1, 668009 | 1, 668407 |
| Number of properties | 4 | 3 |
| Additive primes | 21147th | 21157th |
| Isolated primes | 42473rd | 42492nd |
| Primes | 54170th | 54191st |
| Sophie germain primes | 5506th | |
| Roman numberals | ||
| Base 2 | 101000110001011010012 | 101000110010111101112 |
| Base 3 | 10202211000023 | 10202212122113 |
| Base 4 | 22030112214 | 22030233134 |
| Base 5 | 1323340145 | 1323421125 |
| Base 6 | 221523456 | 221542516 |
| Base 7 | 54513567 | 54524657 |
| Base 8 | 24305518 | 24313678 |
| Base 9 | 12273029 | 12277849 |
| Base 10 | 66800910 | 66840710 |
| Base 11 | 41698111 | 41720311 |
| Base 12 | 2826b512 | 28298712 |
| Base 13 | 1a509413 | 1a530c13 |
| Base 14 | 13562d14 | 13583514 |
| Base 15 | d2dde15 | d30a715 |
| Base 16 | a316916 | a32f716 |