Compare 667991 vs 667994
| Property | 667991 | 667994 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6679911 | 21 × 3339971 |
| Prime factorization | 667991 | 2 × 333997 |
| Divisors count | 2 | 4 |
| Divisors | 1, 667991 | 1, 2, 333997, 667994 |
| Number of properties | 4 | 1 |
| Chen primes | 21176th | |
| Cousin primes (2nd member) | 5841st | |
| Isolated primes | 42471st | |
| Primes | 54168th | |
| Semiprimes | 142872nd | |
| Roman numberals | ||
| Base 2 | 101000110001010101112 | 101000110001010110102 |
| Base 3 | 10202210221023 | 10202210221123 |
| Base 4 | 22030111134 | 22030111224 |
| Base 5 | 1323334315 | 1323334345 |
| Base 6 | 221523156 | 221523226 |
| Base 7 | 54513327 | 54513357 |
| Base 8 | 24305278 | 24305328 |
| Base 9 | 12272729 | 12272759 |
| Base 10 | 66799110 | 66799410 |
| Base 11 | 41696511 | 41696811 |
| Base 12 | 28269b12 | 2826a212 |
| Base 13 | 1a507c13 | 1a508213 |
| Base 14 | 13561914 | 13561c14 |
| Base 15 | d2dcb15 | d2dce15 |
| Base 16 | a315716 | a315a16 |