Compare 8161 vs 8165
| Property | 8161 | 8165 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 81611 | 51 × 231 × 711 |
| Prime factorization | 8161 | 5 × 23 × 71 |
| Divisors count | 2 | 8 |
| Divisors | 1, 8161 | 1, 5, 23, 71, 115, 355, 1633, 8165 |
| Number of properties | 7 | 0 |
| Good primes | 151st | |
| Isolated primes | 671st | |
| Lucky primes | 185th | |
| Primes | 1024th | |
| Pythagorean primes | 509th | |
| Sexy primes (1st member) | 351st | |
| Solinas primes | 75th | |
| Roman numberals | ||
| Base 2 | 11111111000012 | 11111111001012 |
| Base 3 | 1020120213 | 1020121023 |
| Base 4 | 13332014 | 13332114 |
| Base 5 | 2301215 | 2301305 |
| Base 6 | 1014416 | 1014456 |
| Base 7 | 325367 | 325437 |
| Base 8 | 177418 | 177458 |
| Base 9 | 121679 | 121729 |
| Base 10 | 816110 | 816510 |
| Base 11 | 614a11 | 615311 |
| Base 12 | 488112 | 488512 |
| Base 13 | 393a13 | 394113 |
| Base 14 | 2d8d14 | 2d9314 |
| Base 15 | 264115 | 264515 |
| Base 16 | 1fe116 | 1fe516 |