Compare 81649 vs 81650
| Property | 81649 | 81650 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 4 |
| Total factors | 1 | 5 |
| Prime factorization | 816491 | 21 × 52 × 231 × 711 |
| Prime factorization | 81649 | 2 × 5 × 5 × 23 × 71 |
| Divisors count | 2 | 24 |
| Divisors | 1, 81649 | 1, 2, 5, 10, 23, 25, 46, 50, 71, 115, 142, 230, 355, 575, 710, 1150, 1633, 1775, 3266, 3550, 8165, 16330, 40825, 81650 |
| Number of properties | 4 | 0 |
| Lucky primes | 1076th | |
| Primes | 7986th | |
| Pythagorean primes | 3979th | |
| Twin primes (2nd member) | 1028th | |
| Roman numberals | ||
| Base 2 | 100111110111100012 | 100111110111100102 |
| Base 3 | 110110000013 | 110110000023 |
| Base 4 | 1033233014 | 1033233024 |
| Base 5 | 101030445 | 101031005 |
| Base 6 | 14300016 | 14300026 |
| Base 7 | 4600217 | 4600227 |
| Base 8 | 2373618 | 2373628 |
| Base 9 | 1340019 | 1340029 |
| Base 10 | 8164910 | 8165010 |
| Base 11 | 5638711 | 5638811 |
| Base 12 | 3b30112 | 3b30212 |
| Base 13 | 2b21913 | 2b21a13 |
| Base 14 | 21a8114 | 21a8214 |
| Base 15 | 192d415 | 192d515 |
| Base 16 | 13ef116 | 13ef216 |