Compare 20507 vs 20521
| Property | 20507 | 20521 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 205071 | 205211 |
| Prime factorization | 20507 | 20521 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20507 | 1, 20521 |
| Number of properties | 4 | 6 |
| Chen primes | 1139th | 1140th |
| Harmonic primes | 843rd | |
| Isolated primes | 1619th | |
| Primes | 2314th | 2316th |
| Pythagorean primes | 1153rd | |
| Safe primes | 194th | |
| Twin primes (1st member) | 349th | |
| Ulam primes | 172nd | |
| Roman numberals | ||
| Base 2 | 1010000000110112 | 1010000001010012 |
| Base 3 | 10010101123 | 10010110013 |
| Base 4 | 110001234 | 110002214 |
| Base 5 | 11240125 | 11240415 |
| Base 6 | 2345356 | 2350016 |
| Base 7 | 1135347 | 1135547 |
| Base 8 | 500338 | 500518 |
| Base 9 | 311159 | 311319 |
| Base 10 | 2050710 | 2052110 |
| Base 11 | 1445311 | 1446611 |
| Base 12 | ba4b12 | ba6112 |
| Base 13 | 944613 | 945713 |
| Base 14 | 768b14 | 769b14 |
| Base 15 | 612215 | 613115 |
| Base 16 | 501b16 | 502916 |