Compare 66889 vs 66890
| Property | 66889 | 66890 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 668891 | 21 × 51 × 66891 |
| Prime factorization | 66889 | 2 × 5 × 6689 |
| Divisors count | 2 | 8 |
| Divisors | 1, 66889 | 1, 2, 5, 10, 6689, 13378, 33445, 66890 |
| Number of properties | 7 | 0 |
| Additive primes | 2847th | |
| Harmonic primes | 2505th | |
| Isolated primes | 4921st | |
| Primes | 6666th | |
| Pythagorean primes | 3324th | |
| Sexy primes (2nd member) | 1771st | |
| Sexy prime triplets (3rd member) | 399th | |
| Roman numberals | ||
| Base 2 | 100000101010010012 | 100000101010010102 |
| Base 3 | 101012021013 | 101012021023 |
| Base 4 | 1001110214 | 1001110224 |
| Base 5 | 41200245 | 41200305 |
| Base 6 | 12334016 | 12334026 |
| Base 7 | 3660047 | 3660057 |
| Base 8 | 2025118 | 2025128 |
| Base 9 | 1116719 | 1116729 |
| Base 10 | 6688910 | 6689010 |
| Base 11 | 4628911 | 4628a11 |
| Base 12 | 3286112 | 3286212 |
| Base 13 | 245a413 | 245a513 |
| Base 14 | 1a53b14 | 1a53c14 |
| Base 15 | 14c4415 | 14c4515 |
| Base 16 | 1054916 | 1054a16 |