Compare 108987 vs 108991
| Property | 108987 | 108991 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 171 × 21371 | 1089911 |
| Prime factorization | 3 × 17 × 2137 | 108991 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 17, 51, 2137, 6411, 36329, 108987 | 1, 108991 |
| Number of properties | 0 | 4 |
| Harmonic primes | 3906th | |
| Isolated primes | 7748th | |
| Lucky primes | 1384th | |
| Primes | 10365th | |
| Roman numberals | ||
| Base 2 | 110101001101110112 | 110101001101111112 |
| Base 3 | 121121111203 | 121121112013 |
| Base 4 | 1222123234 | 1222123334 |
| Base 5 | 114414225 | 114414315 |
| Base 6 | 22003236 | 22003316 |
| Base 7 | 6325147 | 6325217 |
| Base 8 | 3246738 | 3246778 |
| Base 9 | 1754469 | 1754519 |
| Base 10 | 10898710 | 10899110 |
| Base 11 | 7497a11 | 7498311 |
| Base 12 | 530a312 | 530a712 |
| Base 13 | 3a7b813 | 3a7bc13 |
| Base 14 | 2ba0b14 | 2ba1114 |
| Base 15 | 2245c15 | 2246115 |
| Base 16 | 1a9bb16 | 1a9bf16 |