Compare 20121 vs 20129
| Property | 20121 | 20129 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 191 × 3531 | 201291 |
| Prime factorization | 3 × 19 × 353 | 20129 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 19, 57, 353, 1059, 6707, 20121 | 1, 20129 |
| Number of properties | 0 | 6 |
| Chen primes | 1119th | |
| Isolated primes | 1592nd | |
| Primes | 2277th | |
| Pythagorean primes | 1132nd | |
| Sexy primes (2nd member) | 698th | |
| Sexy prime triplets (3rd member) | 192nd | |
| Roman numberals | ||
| Base 2 | 1001110100110012 | 1001110101000012 |
| Base 3 | 10001210203 | 10001211123 |
| Base 4 | 103221214 | 103222014 |
| Base 5 | 11204415 | 11210045 |
| Base 6 | 2330536 | 2331056 |
| Base 7 | 1124437 | 1124547 |
| Base 8 | 472318 | 472418 |
| Base 9 | 305369 | 305459 |
| Base 10 | 2012110 | 2012910 |
| Base 11 | 1413211 | 1413a11 |
| Base 12 | b78912 | b79512 |
| Base 13 | 920a13 | 921513 |
| Base 14 | 749314 | 749b14 |
| Base 15 | 5e6615 | 5e6e15 |
| Base 16 | 4e9916 | 4ea116 |