Compare 20399 vs 20521
| Property | 20399 | 20521 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 203991 | 205211 |
| Prime factorization | 20399 | 20521 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20399 | 1, 20521 |
| Number of properties | 6 | 6 |
| Additive primes | 1071st | |
| Chen primes | 1133rd | 1140th |
| Harmonic primes | 843rd | |
| Isolated primes | 1614th | 1619th |
| Primes | 2305th | 2316th |
| Pythagorean primes | 1153rd | |
| Sexy primes (2nd member) | 705th | |
| Ulam primes | 169th | 172nd |
| Roman numberals | ||
| Base 2 | 1001111101011112 | 1010000001010012 |
| Base 3 | 10002221123 | 10010110013 |
| Base 4 | 103322334 | 110002214 |
| Base 5 | 11230445 | 11240415 |
| Base 6 | 2342356 | 2350016 |
| Base 7 | 1133217 | 1135547 |
| Base 8 | 476578 | 500518 |
| Base 9 | 308759 | 311319 |
| Base 10 | 2039910 | 2052110 |
| Base 11 | 1436511 | 1446611 |
| Base 12 | b97b12 | ba6112 |
| Base 13 | 939213 | 945713 |
| Base 14 | 761114 | 769b14 |
| Base 15 | 609e15 | 613115 |
| Base 16 | 4faf16 | 502916 |