Compare 20121 vs 20123
| Property | 20121 | 20123 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 191 × 3531 | 201231 |
| Prime factorization | 3 × 19 × 353 | 20123 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 19, 57, 353, 1059, 6707, 20121 | 1, 20123 |
| Number of properties | 0 | 6 |
| Isolated primes | 1591st | |
| Primes | 2276th | |
| Safe primes | 191st | |
| Sexy primes (1st member) | 698th | |
| Sexy primes (2nd member) | 697th | |
| Sexy prime triplets (2nd member) | 192nd | |
| Roman numberals | ||
| Base 2 | 1001110100110012 | 1001110100110112 |
| Base 3 | 10001210203 | 10001210223 |
| Base 4 | 103221214 | 103221234 |
| Base 5 | 11204415 | 11204435 |
| Base 6 | 2330536 | 2330556 |
| Base 7 | 1124437 | 1124457 |
| Base 8 | 472318 | 472338 |
| Base 9 | 305369 | 305389 |
| Base 10 | 2012110 | 2012310 |
| Base 11 | 1413211 | 1413411 |
| Base 12 | b78912 | b78b12 |
| Base 13 | 920a13 | 920c13 |
| Base 14 | 749314 | 749514 |
| Base 15 | 5e6615 | 5e6815 |
| Base 16 | 4e9916 | 4e9b16 |