Compare 81100 vs 81101
| Property | 81100 | 81101 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 22 × 52 × 8111 | 811011 |
| Prime factorization | 2 × 2 × 5 × 5 × 811 | 81101 |
| Divisors count | 18 | 2 |
| Divisors | 1, 2, 4, 5, 10, 20, 25, 50, 100, 811, 1622, 3244, 4055, 8110, 16220, 20275, 40550, 81100 | 1, 81101 |
| Number of properties | 0 | 5 |
| Additive primes | 3302nd | |
| Cousin primes (2nd member) | 1026th | |
| Isolated primes | 5895th | |
| Primes | 7940th | |
| Pythagorean primes | 3957th | |
| Roman numberals | ||
| Base 2 | 100111100110011002 | 100111100110011012 |
| Base 3 | 110100202013 | 110100202023 |
| Base 4 | 1033030304 | 1033030314 |
| Base 5 | 100434005 | 100434015 |
| Base 6 | 14232446 | 14232456 |
| Base 7 | 4553057 | 4553067 |
| Base 8 | 2363148 | 2363158 |
| Base 9 | 1332219 | 1332229 |
| Base 10 | 8110010 | 8110110 |
| Base 11 | 55a2811 | 55a2911 |
| Base 12 | 3ab2412 | 3ab2512 |
| Base 13 | 2abb613 | 2abb713 |
| Base 14 | 217ac14 | 217ad14 |
| Base 15 | 1906a15 | 1906b15 |
| Base 16 | 13ccc16 | 13ccd16 |