Compare 80809 vs 80820
| Property | 80809 | 80820 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 4 |
| Total factors | 1 | 6 |
| Prime factorization | 808091 | 22 × 32 × 51 × 4491 |
| Prime factorization | 80809 | 2 × 2 × 3 × 3 × 5 × 449 |
| Divisors count | 2 | 36 |
| Divisors | 1, 80809 | 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 449, 898, 1347, 1796, 2245, 2694, 4041, 4490, 5388, 6735, 8082, 8980, 13470, 16164, 20205, 26940, 40410, 80820 |
| Number of properties | 5 | 0 |
| Harmonic primes | 2987th | |
| Isolated primes | 5875th | |
| Primes | 7910th | |
| Pythagorean primes | 3940th | |
| Sexy primes (2nd member) | 2055th | |
| Roman numberals | ||
| Base 2 | 100111011101010012 | 100111011101101002 |
| Base 3 | 110022112213 | 110022121003 |
| Base 4 | 1032322214 | 1032323104 |
| Base 5 | 100412145 | 100412405 |
| Base 6 | 14220416 | 14221006 |
| Base 7 | 4544117 | 4544257 |
| Base 8 | 2356518 | 2356648 |
| Base 9 | 1327579 | 1327709 |
| Base 10 | 8080910 | 8082010 |
| Base 11 | 5579311 | 557a311 |
| Base 12 | 3a92112 | 3a93012 |
| Base 13 | 2aa2113 | 2aa2c13 |
| Base 14 | 2164114 | 2164c14 |
| Base 15 | 18e2415 | 18e3015 |
| Base 16 | 13ba916 | 13bb416 |