Compare 81221 vs 81231
| Property | 81221 | 81231 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 71 × 411 × 2831 | 31 × 270771 |
| Prime factorization | 7 × 41 × 283 | 3 × 27077 |
| Divisors count | 8 | 4 |
| Divisors | 1, 7, 41, 283, 287, 1981, 11603, 81221 | 1, 3, 27077, 81231 |
| Number of properties | 0 | 1 |
| Semiprimes | 19190th | |
| Roman numberals | ||
| Base 2 | 100111101010001012 | 100111101010011112 |
| Base 3 | 110101020123 | 110101021203 |
| Base 4 | 1033110114 | 1033110334 |
| Base 5 | 100443415 | 100444115 |
| Base 6 | 14240056 | 14240236 |
| Base 7 | 4555407 | 4555537 |
| Base 8 | 2365058 | 2365178 |
| Base 9 | 1333659 | 1333769 |
| Base 10 | 8122110 | 8123110 |
| Base 11 | 5602811 | 5603711 |
| Base 12 | 3b00512 | 3b01312 |
| Base 13 | 2ac7a13 | 2ac8713 |
| Base 14 | 2185714 | 2186314 |
| Base 15 | 190eb15 | 1910615 |
| Base 16 | 13d4516 | 13d4f16 |