Compare 195987 vs 195991
| Property | 195987 | 195991 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 111 × 59391 | 1959911 |
| Prime factorization | 3 × 11 × 5939 | 195991 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 11, 33, 5939, 17817, 65329, 195987 | 1, 195991 |
| Number of properties | 0 | 6 |
| Harmonic primes | 6636th | |
| Isolated primes | 13412th | |
| Primes | 17657th | |
| Sexy primes (1st member) | 4230th | |
| Sexy prime triplets (1st member) | 855th | |
| Super primes | 2028th | |
| Roman numberals | ||
| Base 2 | 1011111101100100112 | 1011111101100101112 |
| Base 3 | 1002212112103 | 1002212112213 |
| Base 4 | 2333121034 | 2333121134 |
| Base 5 | 222324225 | 222324315 |
| Base 6 | 41112036 | 41112116 |
| Base 7 | 14442517 | 14442557 |
| Base 8 | 5766238 | 5766278 |
| Base 9 | 3277539 | 3277579 |
| Base 10 | 19598710 | 19599110 |
| Base 11 | 12428011 | 12428411 |
| Base 12 | 9550312 | 9550712 |
| Base 13 | 6b28c13 | 6b29313 |
| Base 14 | 515d114 | 515d514 |
| Base 15 | 3d10c15 | 3d11115 |
| Base 16 | 2fd9316 | 2fd9716 |