Compare 81439 vs 81441
| Property | 81439 | 81441 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 2 |
| Total factors | 1 | 3 |
| Prime factorization | 814391 | 32 × 90491 |
| Prime factorization | 81439 | 3 × 3 × 9049 |
| Divisors count | 2 | 6 |
| Divisors | 1, 81439 | 1, 3, 9, 9049, 27147, 81441 |
| Number of properties | 5 | 0 |
| Harmonic primes | 3009th | |
| Isolated primes | 5917th | |
| Lucky primes | 1074th | |
| Primes | 7968th | |
| Ulam primes | 581st | |
| Roman numberals | ||
| Base 2 | 100111110000111112 | 100111110001000012 |
| Base 3 | 110102010213 | 110102011003 |
| Base 4 | 1033201334 | 1033202014 |
| Base 5 | 101012245 | 101012315 |
| Base 6 | 14250116 | 14250136 |
| Base 7 | 4563017 | 4563037 |
| Base 8 | 2370378 | 2370418 |
| Base 9 | 1336379 | 1336409 |
| Base 10 | 8143910 | 8144110 |
| Base 11 | 5620611 | 5620811 |
| Base 12 | 3b16712 | 3b16912 |
| Base 13 | 2b0b713 | 2b0b913 |
| Base 14 | 2197114 | 2197314 |
| Base 15 | 191e415 | 191e615 |
| Base 16 | 13e1f16 | 13e2116 |