Compare 20161 vs 20164
| Property | 20161 | 20164 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 2 |
| Total factors | 1 | 4 |
| Prime factorization | 201611 | 22 × 712 |
| Prime factorization | 20161 | 2 × 2 × 71 × 71 |
| Divisors count | 2 | 9 |
| Divisors | 1, 20161 | 1, 2, 4, 71, 142, 284, 5041, 10082, 20164 |
| Number of properties | 5 | 0 |
| Centered decagonal primes | 34th | |
| Isolated primes | 1594th | |
| Primes | 2281st | |
| Pythagorean primes | 1134th | |
| Super primes | 339th | |
| Roman numberals | ||
| Base 2 | 1001110110000012 | 1001110110001002 |
| Base 3 | 10001222013 | 10001222113 |
| Base 4 | 103230014 | 103230104 |
| Base 5 | 11211215 | 11211245 |
| Base 6 | 2332016 | 2332046 |
| Base 7 | 1125317 | 1125347 |
| Base 8 | 473018 | 473048 |
| Base 9 | 305819 | 305849 |
| Base 10 | 2016110 | 2016410 |
| Base 11 | 1416911 | 1417111 |
| Base 12 | b80112 | b80412 |
| Base 13 | 923b13 | 924113 |
| Base 14 | 74c114 | 74c414 |
| Base 15 | 5e9115 | 5e9415 |
| Base 16 | 4ec116 | 4ec416 |