Compare 166399 vs 166406
| Property | 166399 | 166406 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 1663991 | 21 × 832031 |
| Prime factorization | 166399 | 2 × 83203 |
| Divisors count | 2 | 4 |
| Divisors | 1, 166399 | 1, 2, 83203, 166406 |
| Number of properties | 6 | 1 |
| Cousin primes (1st member) | 1832nd | |
| Harmonic primes | 5707th | |
| Isolated primes | 11495th | |
| Lucky primes | 1974th | |
| Primes | 15204th | |
| Semiprimes | 37974th | |
| Sexy primes (2nd member) | 3678th | |
| Roman numberals | ||
| Base 2 | 1010001001111111112 | 1010001010000001102 |
| Base 3 | 221100202213 | 221100210123 |
| Base 4 | 2202133334 | 2202200124 |
| Base 5 | 203110445 | 203111115 |
| Base 6 | 33222116 | 33222226 |
| Base 7 | 12620627 | 12621027 |
| Base 8 | 5047778 | 5050068 |
| Base 9 | 2732279 | 2732359 |
| Base 10 | 16639910 | 16640610 |
| Base 11 | 10402211 | 10402911 |
| Base 12 | 8036712 | 8037212 |
| Base 13 | 5a97c13 | 5a98613 |
| Base 14 | 448d914 | 4490214 |
| Base 15 | 3448415 | 3448b15 |
| Base 16 | 289ff16 | 28a0616 |