Compare 666979 vs 667987
| Property | 666979 | 667987 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6669791 | 6679871 |
| Prime factorization | 666979 | 667987 |
| Divisors count | 2 | 2 |
| Divisors | 1, 666979 | 1, 667987 |
| Number of properties | 5 | 6 |
| Additive primes | 21115th | 21146th |
| Cousin primes (1st member) | 5834th | 5841st |
| Happy primes | 7665th | |
| Isolated primes | 42416th | 42470th |
| Primes | 54093rd | 54167th |
| Super primes | 5515th | |
| Ulam primes | 3980th | |
| Roman numberals | ||
| Base 2 | 101000101101011000112 | 101000110001010100112 |
| Base 3 | 10202122202213 | 10202210220213 |
| Base 4 | 22023112034 | 22030111034 |
| Base 5 | 1323204045 | 1323334225 |
| Base 6 | 221435116 | 221523116 |
| Base 7 | 54453557 | 54513257 |
| Base 8 | 24265438 | 24305238 |
| Base 9 | 12258279 | 12272679 |
| Base 10 | 66697910 | 66798710 |
| Base 11 | 41612511 | 41696111 |
| Base 12 | 281b9712 | 28269712 |
| Base 13 | 1a478113 | 1a507813 |
| Base 14 | 1350d514 | 13561514 |
| Base 15 | d295415 | d2dc715 |
| Base 16 | a2d6316 | a315316 |