Compare 668989 vs 669091
| Property | 668989 | 669091 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6689891 | 6690911 |
| Prime factorization | 668989 | 669091 |
| Divisors count | 2 | 2 |
| Divisors | 1, 668989 | 1, 669091 |
| Number of properties | 4 | 3 |
| Additive primes | 21177th | |
| Happy primes | 7684th | |
| Isolated primes | 42527th | |
| Lucky primes | 6201st | |
| Primes | 54234th | 54241st |
| Twin primes (2nd member) | 5855th | |
| Roman numberals | ||
| Base 2 | 101000110101001111012 | 101000110101101000112 |
| Base 3 | 10202222001013 | 10202222110113 |
| Base 4 | 22031103314 | 22031122034 |
| Base 5 | 1324014245 | 1324023315 |
| Base 6 | 222011016 | 222013516 |
| Base 7 | 54542567 | 54544637 |
| Base 8 | 24324758 | 24326438 |
| Base 9 | 12286119 | 12287349 |
| Base 10 | 66898910 | 66909110 |
| Base 11 | 41769211 | 41777511 |
| Base 12 | 28319112 | 28325712 |
| Base 13 | 1a566913 | 1a571713 |
| Base 14 | 135b2d14 | 135ba314 |
| Base 15 | d334415 | d33b115 |
| Base 16 | a353d16 | a35a316 |