Compare 66887 vs 66889
| Property | 66887 | 66889 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 2111 × 3171 | 668891 |
| Prime factorization | 211 × 317 | 66889 |
| Divisors count | 4 | 2 |
| Divisors | 1, 211, 317, 66887 | 1, 66889 |
| Number of properties | 1 | 7 |
| Additive primes | 2847th | |
| Harmonic primes | 2505th | |
| Isolated primes | 4921st | |
| Primes | 6666th | |
| Pythagorean primes | 3324th | |
| Semiprimes | 15974th | |
| Sexy primes (2nd member) | 1771st | |
| Sexy prime triplets (3rd member) | 399th | |
| Roman numberals | ||
| Base 2 | 100000101010001112 | 100000101010010012 |
| Base 3 | 101012020223 | 101012021013 |
| Base 4 | 1001110134 | 1001110214 |
| Base 5 | 41200225 | 41200245 |
| Base 6 | 12333556 | 12334016 |
| Base 7 | 3660027 | 3660047 |
| Base 8 | 2025078 | 2025118 |
| Base 9 | 1116689 | 1116719 |
| Base 10 | 6688710 | 6688910 |
| Base 11 | 4628711 | 4628911 |
| Base 12 | 3285b12 | 3286112 |
| Base 13 | 245a213 | 245a413 |
| Base 14 | 1a53914 | 1a53b14 |
| Base 15 | 14c4215 | 14c4415 |
| Base 16 | 1054716 | 1054916 |