Compare 668989 vs 669989
| Property | 668989 | 669989 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6689891 | 6699891 |
| Prime factorization | 668989 | 669989 |
| Divisors count | 2 | 2 |
| Divisors | 1, 668989 | 1, 669989 |
| Number of properties | 4 | 5 |
| Additive primes | 21202nd | |
| Chen primes | 21227th | |
| Happy primes | 7684th | 7696th |
| Isolated primes | 42527th | 42588th |
| Lucky primes | 6201st | |
| Primes | 54234th | 54309th |
| Roman numberals | ||
| Base 2 | 101000110101001111012 | 101000111001001001012 |
| Base 3 | 10202222001013 | 10210010011023 |
| Base 4 | 22031103314 | 22032102114 |
| Base 5 | 1324014245 | 1324144245 |
| Base 6 | 222011016 | 222054456 |
| Base 7 | 54542567 | 54602157 |
| Base 8 | 24324758 | 24344458 |
| Base 9 | 12286119 | 12310429 |
| Base 10 | 66898910 | 66998910 |
| Base 11 | 41769211 | 41841111 |
| Base 12 | 28319112 | 28388512 |
| Base 13 | 1a566913 | 1a5c5813 |
| Base 14 | 135b2d14 | 13624514 |
| Base 15 | d334415 | d37ae15 |
| Base 16 | a353d16 | a392516 |