Compare 21397 vs 22129
| Property | 21397 | 22129 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 213971 | 221291 |
| Prime factorization | 21397 | 22129 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21397 | 1, 22129 |
| Number of properties | 5 | 7 |
| Cousin primes (1st member) | 365th | 376th |
| Happy primes | 407th | |
| Harmonic primes | 914th | |
| Isolated primes | 1677th | 1732nd |
| Primes | 2402nd | 2481st |
| Pythagorean primes | 1191st | 1229th |
| Sexy primes (2nd member) | 729th | 747th |
| Roman numberals | ||
| Base 2 | 1010011100101012 | 1010110011100012 |
| Base 3 | 10021001113 | 10101001213 |
| Base 4 | 110321114 | 111213014 |
| Base 5 | 11410425 | 12020045 |
| Base 6 | 2430216 | 2502416 |
| Base 7 | 1162457 | 1213427 |
| Base 8 | 516258 | 531618 |
| Base 9 | 323149 | 333179 |
| Base 10 | 2139710 | 2212910 |
| Base 11 | 1509211 | 1569811 |
| Base 12 | 1047112 | 1098112 |
| Base 13 | 997c13 | a0c313 |
| Base 14 | 7b2514 | 80c914 |
| Base 15 | 651715 | 685415 |
| Base 16 | 539516 | 567116 |