Compare 668999 vs 669989
| Property | 668999 | 669989 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6689991 | 6699891 |
| Prime factorization | 668999 | 669989 |
| Divisors count | 2 | 2 |
| Divisors | 1, 668999 | 1, 669989 |
| Number of properties | 4 | 5 |
| Additive primes | 21176th | 21202nd |
| Chen primes | 21227th | |
| Happy primes | 7685th | 7696th |
| Isolated primes | 42528th | 42588th |
| Primes | 54235th | 54309th |
| Roman numberals | ||
| Base 2 | 101000110101010001112 | 101000111001001001012 |
| Base 3 | 10202222002023 | 10210010011023 |
| Base 4 | 22031110134 | 22032102114 |
| Base 5 | 1324014445 | 1324144245 |
| Base 6 | 222011156 | 222054456 |
| Base 7 | 54543027 | 54602157 |
| Base 8 | 24325078 | 24344458 |
| Base 9 | 12286229 | 12310429 |
| Base 10 | 66899910 | 66998910 |
| Base 11 | 4176a111 | 41841111 |
| Base 12 | 28319b12 | 28388512 |
| Base 13 | 1a567613 | 1a5c5813 |
| Base 14 | 135b3914 | 13624514 |
| Base 15 | d334e15 | d37ae15 |
| Base 16 | a354716 | a392516 |