Compare 20158 vs 20161
| Property | 20158 | 20161 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 21 × 100791 | 201611 |
| Prime factorization | 2 × 10079 | 20161 |
| Divisors count | 4 | 2 |
| Divisors | 1, 2, 10079, 20158 | 1, 20161 |
| Number of properties | 1 | 5 |
| Centered decagonal primes | 34th | |
| Isolated primes | 1594th | |
| Primes | 2281st | |
| Pythagorean primes | 1134th | |
| Semiprimes | 5120th | |
| Super primes | 339th | |
| Roman numberals | ||
| Base 2 | 1001110101111102 | 1001110110000012 |
| Base 3 | 10001221213 | 10001222013 |
| Base 4 | 103223324 | 103230014 |
| Base 5 | 11211135 | 11211215 |
| Base 6 | 2331546 | 2332016 |
| Base 7 | 1125257 | 1125317 |
| Base 8 | 472768 | 473018 |
| Base 9 | 305779 | 305819 |
| Base 10 | 2015810 | 2016110 |
| Base 11 | 1416611 | 1416911 |
| Base 12 | b7ba12 | b80112 |
| Base 13 | 923813 | 923b13 |
| Base 14 | 74bc14 | 74c114 |
| Base 15 | 5e8d15 | 5e9115 |
| Base 16 | 4ebe16 | 4ec116 |