Compare 8161 vs 16381
| Property | 8161 | 16381 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 81611 | 163811 |
| Prime factorization | 8161 | 16381 |
| Divisors count | 2 | 2 |
| Divisors | 1, 8161 | 1, 16381 |
| Number of properties | 7 | 8 |
| Additive primes | 904th | |
| Centered square primes | 33rd | |
| Centered triangular primes | 25th | |
| Good primes | 151st | |
| Isolated primes | 671st | 1321st |
| Lucky primes | 185th | 312th |
| Primes | 1024th | 1900th |
| Pythagorean primes | 509th | 941st |
| Sexy primes (1st member) | 351st | |
| Solinas primes | 75th | 85th |
| Roman numberals | ||
| Base 2 | 11111111000012 | 111111111111012 |
| Base 3 | 1020120213 | 2111102013 |
| Base 4 | 13332014 | 33333314 |
| Base 5 | 2301215 | 10110115 |
| Base 6 | 1014416 | 2035016 |
| Base 7 | 325367 | 655217 |
| Base 8 | 177418 | 377758 |
| Base 9 | 121679 | 244219 |
| Base 10 | 816110 | 1638110 |
| Base 11 | 614a11 | 1134211 |
| Base 12 | 488112 | 959112 |
| Base 13 | 393a13 | 75c113 |
| Base 14 | 2d8d14 | 5d8114 |
| Base 15 | 264115 | 4cc115 |
| Base 16 | 1fe116 | 3ffd16 |