Compare 81157 vs 81421
| Property | 81157 | 81421 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 811571 | 814211 |
| Prime factorization | 81157 | 81421 |
| Divisors count | 2 | 2 |
| Divisors | 1, 81157 | 1, 81421 |
| Number of properties | 6 | 6 |
| Happy primes | 1236th | |
| Harmonic primes | 2997th | 3008th |
| Isolated primes | 5898th | 5916th |
| Lucky primes | 1070th | 1073rd |
| Primes | 7943rd | 7967th |
| Pythagorean primes | 3958th | 3970th |
| Sexy primes (1st member) | 2065th | |
| Roman numberals | ||
| Base 2 | 100111101000001012 | 100111110000011012 |
| Base 3 | 110100222113 | 110102001213 |
| Base 4 | 1033100114 | 1033200314 |
| Base 5 | 100441125 | 101011415 |
| Base 6 | 14234216 | 14245416 |
| Base 7 | 4554167 | 4562447 |
| Base 8 | 2364058 | 2370158 |
| Base 9 | 1332849 | 1336179 |
| Base 10 | 8115710 | 8142110 |
| Base 11 | 55a7a11 | 5619a11 |
| Base 12 | 3ab7112 | 3b15112 |
| Base 13 | 2ac2b13 | 2b0a213 |
| Base 14 | 2180d14 | 2195b14 |
| Base 15 | 190a715 | 191d115 |
| Base 16 | 13d0516 | 13e0d16 |