Compare 20155 vs 20161
| Property | 20155 | 20161 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 51 × 291 × 1391 | 201611 |
| Prime factorization | 5 × 29 × 139 | 20161 |
| Divisors count | 8 | 2 |
| Divisors | 1, 5, 29, 139, 145, 695, 4031, 20155 | 1, 20161 |
| Number of properties | 0 | 5 |
| Centered decagonal primes | 34th | |
| Isolated primes | 1594th | |
| Primes | 2281st | |
| Pythagorean primes | 1134th | |
| Super primes | 339th | |
| Roman numberals | ||
| Base 2 | 1001110101110112 | 1001110110000012 |
| Base 3 | 10001221113 | 10001222013 |
| Base 4 | 103223234 | 103230014 |
| Base 5 | 11211105 | 11211215 |
| Base 6 | 2331516 | 2332016 |
| Base 7 | 1125227 | 1125317 |
| Base 8 | 472738 | 473018 |
| Base 9 | 305749 | 305819 |
| Base 10 | 2015510 | 2016110 |
| Base 11 | 1416311 | 1416911 |
| Base 12 | b7b712 | b80112 |
| Base 13 | 923513 | 923b13 |
| Base 14 | 74b914 | 74c114 |
| Base 15 | 5e8a15 | 5e9115 |
| Base 16 | 4ebb16 | 4ec116 |