Compare 666983 vs 668009
| Property | 666983 | 668009 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6669831 | 6680091 |
| Prime factorization | 666983 | 668009 |
| Divisors count | 2 | 2 |
| Divisors | 1, 666983 | 1, 668009 |
| Number of properties | 7 | 4 |
| Additive primes | 21147th | |
| Cousin primes (2nd member) | 5834th | |
| Happy primes | 7666th | |
| Isolated primes | 42417th | 42473rd |
| Primes | 54094th | 54170th |
| Safe primes | 3125th | |
| Sexy primes (1st member) | 11671st | |
| Sophie germain primes | 5500th | 5506th |
| Roman numberals | ||
| Base 2 | 101000101101011001112 | 101000110001011010012 |
| Base 3 | 10202122210023 | 10202211000023 |
| Base 4 | 22023112134 | 22030112214 |
| Base 5 | 1323204135 | 1323340145 |
| Base 6 | 221435156 | 221523456 |
| Base 7 | 54453627 | 54513567 |
| Base 8 | 24265478 | 24305518 |
| Base 9 | 12258329 | 12273029 |
| Base 10 | 66698310 | 66800910 |
| Base 11 | 41612911 | 41698111 |
| Base 12 | 281b9b12 | 2826b512 |
| Base 13 | 1a478513 | 1a509413 |
| Base 14 | 1350d914 | 13562d14 |
| Base 15 | d295815 | d2dde15 |
| Base 16 | a2d6716 | a316916 |