Compare 81427 vs 81439
| Property | 81427 | 81439 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 1071 × 7611 | 814391 |
| Prime factorization | 107 × 761 | 81439 |
| Divisors count | 4 | 2 |
| Divisors | 1, 107, 761, 81427 | 1, 81439 |
| Number of properties | 1 | 5 |
| Harmonic primes | 3009th | |
| Isolated primes | 5917th | |
| Lucky primes | 1074th | |
| Primes | 7968th | |
| Semiprimes | 19231st | |
| Ulam primes | 581st | |
| Roman numberals | ||
| Base 2 | 100111110000100112 | 100111110000111112 |
| Base 3 | 110102002113 | 110102010213 |
| Base 4 | 1033201034 | 1033201334 |
| Base 5 | 101012025 | 101012245 |
| Base 6 | 14245516 | 14250116 |
| Base 7 | 4562537 | 4563017 |
| Base 8 | 2370238 | 2370378 |
| Base 9 | 1336249 | 1336379 |
| Base 10 | 8142710 | 8143910 |
| Base 11 | 561a511 | 5620611 |
| Base 12 | 3b15712 | 3b16712 |
| Base 13 | 2b0a813 | 2b0b713 |
| Base 14 | 2196314 | 2197114 |
| Base 15 | 191d715 | 191e415 |
| Base 16 | 13e1316 | 13e1f16 |