Compare 8151 vs 8161
| Property | 8151 | 8161 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 4 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 31 × 111 × 131 × 191 | 81611 |
| Prime factorization | 3 × 11 × 13 × 19 | 8161 |
| Divisors count | 16 | 2 |
| Divisors | 1, 3, 11, 13, 19, 33, 39, 57, 143, 209, 247, 429, 627, 741, 2717, 8151 | 1, 8161 |
| Number of properties | 0 | 7 |
| 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 | 11111110101112 | 11111111000012 |
| Base 3 | 1020112203 | 1020120213 |
| Base 4 | 13331134 | 13332014 |
| Base 5 | 2301015 | 2301215 |
| Base 6 | 1014236 | 1014416 |
| Base 7 | 325237 | 325367 |
| Base 8 | 177278 | 177418 |
| Base 9 | 121569 | 121679 |
| Base 10 | 815110 | 816110 |
| Base 11 | 614011 | 614a11 |
| Base 12 | 487312 | 488112 |
| Base 13 | 393013 | 393a13 |
| Base 14 | 2d8314 | 2d8d14 |
| Base 15 | 263615 | 264115 |
| Base 16 | 1fd716 | 1fe116 |