Compare 668989 vs 669931
| Property | 668989 | 669931 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6689891 | 6699311 |
| Prime factorization | 668989 | 669931 |
| Divisors count | 2 | 2 |
| Divisors | 1, 668989 | 1, 669931 |
| Number of properties | 4 | 5 |
| Happy primes | 7684th | |
| Isolated primes | 42527th | 42583rd |
| Lucky primes | 6201st | 6207th |
| Primes | 54234th | 54304th |
| Sexy primes (1st member) | 11711th | |
| Sexy prime triplets (1st member) | 2136th | |
| Roman numberals | ||
| Base 2 | 101000110101001111012 | 101000111000111010112 |
| Base 3 | 10202222001013 | 10210002220213 |
| Base 4 | 22031103314 | 22032032234 |
| Base 5 | 1324014245 | 1324142115 |
| Base 6 | 222011016 | 222053116 |
| Base 7 | 54542567 | 54601037 |
| Base 8 | 24324758 | 24343538 |
| Base 9 | 12286119 | 12308679 |
| Base 10 | 66898910 | 66993110 |
| Base 11 | 41769211 | 41836911 |
| Base 12 | 28319112 | 28383712 |
| Base 13 | 1a566913 | 1a5c1213 |
| Base 14 | 135b2d14 | 13620314 |
| Base 15 | d334415 | d377115 |
| Base 16 | a353d16 | a38eb16 |