Compare 20479 vs 20521
| Property | 20479 | 20521 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 204791 | 205211 |
| Prime factorization | 20479 | 20521 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20479 | 1, 20521 |
| Number of properties | 7 | 6 |
| Chen primes | 1138th | 1140th |
| Cousin primes (1st member) | 353rd | |
| Harmonic primes | 842nd | 843rd |
| Isolated primes | 1619th | |
| Primes | 2312th | 2316th |
| Prime triplets (2nd member) | 171st | |
| Pythagorean primes | 1153rd | |
| Solinas primes | 89th | |
| Twin primes (2nd member) | 348th | |
| Ulam primes | 172nd | |
| Roman numberals | ||
| Base 2 | 1001111111111112 | 1010000001010012 |
| Base 3 | 10010021113 | 10010110013 |
| Base 4 | 103333334 | 110002214 |
| Base 5 | 11234045 | 11240415 |
| Base 6 | 2344516 | 2350016 |
| Base 7 | 1134647 | 1135547 |
| Base 8 | 477778 | 500518 |
| Base 9 | 310749 | 311319 |
| Base 10 | 2047910 | 2052110 |
| Base 11 | 1442811 | 1446611 |
| Base 12 | ba2712 | ba6112 |
| Base 13 | 942413 | 945713 |
| Base 14 | 766b14 | 769b14 |
| Base 15 | 610415 | 613115 |
| Base 16 | 4fff16 | 502916 |