Compare 81 vs 89
Property | 81 | 89 |
---|---|---|
Type | composite number | prime |
Unique factors | 1 | 1 |
Total factors | 4 | 1 |
Prime factorization | 34 | 891 |
Prime factorization | 3 × 3 × 3 × 3 | 89 |
Divisors count | 5 | 2 |
Divisors | 1, 3, 9, 27, 81 | 1, 89 |
Number of properties | 0 | 8 |
Additive primes | 14th | |
Chen primes | 20th | |
Fibonacci primes | 5th | |
Isolated primes | 9th | |
Primes | 24th | |
Pythagorean primes | 10th | |
Sexy primes (2nd member) | 15th | |
Sophie germain primes | 10th | |
Roman numberals | LXXXI | LXXXIX |
Base 2 | 10100012 | 10110012 |
Base 3 | 100003 | 100223 |
Base 4 | 11014 | 11214 |
Base 5 | 3115 | 3245 |
Base 6 | 2136 | 2256 |
Base 7 | 1447 | 1557 |
Base 8 | 1218 | 1318 |
Base 9 | 1009 | 1089 |
Base 10 | 8110 | 8910 |
Base 11 | 7411 | 8111 |
Base 12 | 6912 | 7512 |
Base 13 | 6313 | 6b13 |
Base 14 | 5b14 | 6514 |
Base 15 | 5615 | 5e15 |
Base 16 | 5116 | 5916 |