Compare 20479 vs 21397
| Property | 20479 | 21397 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 204791 | 213971 |
| Prime factorization | 20479 | 21397 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20479 | 1, 21397 |
| Number of properties | 7 | 5 |
| Chen primes | 1138th | |
| Cousin primes (1st member) | 353rd | 365th |
| Harmonic primes | 842nd | |
| Isolated primes | 1677th | |
| Primes | 2312th | 2402nd |
| Prime triplets (2nd member) | 171st | |
| Pythagorean primes | 1191st | |
| Sexy primes (2nd member) | 729th | |
| Solinas primes | 89th | |
| Twin primes (2nd member) | 348th | |
| Roman numberals | ||
| Base 2 | 1001111111111112 | 1010011100101012 |
| Base 3 | 10010021113 | 10021001113 |
| Base 4 | 103333334 | 110321114 |
| Base 5 | 11234045 | 11410425 |
| Base 6 | 2344516 | 2430216 |
| Base 7 | 1134647 | 1162457 |
| Base 8 | 477778 | 516258 |
| Base 9 | 310749 | 323149 |
| Base 10 | 2047910 | 2139710 |
| Base 11 | 1442811 | 1509211 |
| Base 12 | ba2712 | 1047112 |
| Base 13 | 942413 | 997c13 |
| Base 14 | 766b14 | 7b2514 |
| Base 15 | 610415 | 651715 |
| Base 16 | 4fff16 | 539516 |