Compare 20407 vs 20521
| Property | 20407 | 20521 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 204071 | 205211 |
| Prime factorization | 20407 | 20521 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20407 | 1, 20521 |
| Number of properties | 6 | 6 |
| Additive primes | 1072nd | |
| Chen primes | 1134th | 1140th |
| Cousin primes (1st member) | 352nd | |
| Harmonic primes | 843rd | |
| Isolated primes | 1615th | 1619th |
| Long primes | 880th | |
| Primes | 2306th | 2316th |
| Pythagorean primes | 1153rd | |
| Ulam primes | 172nd | |
| Roman numberals | ||
| Base 2 | 1001111101101112 | 1010000001010012 |
| Base 3 | 10002222113 | 10010110013 |
| Base 4 | 103323134 | 110002214 |
| Base 5 | 11231125 | 11240415 |
| Base 6 | 2342516 | 2350016 |
| Base 7 | 1133327 | 1135547 |
| Base 8 | 476678 | 500518 |
| Base 9 | 308849 | 311319 |
| Base 10 | 2040710 | 2052110 |
| Base 11 | 1437211 | 1446611 |
| Base 12 | b98712 | ba6112 |
| Base 13 | 939a13 | 945713 |
| Base 14 | 761914 | 769b14 |
| Base 15 | 60a715 | 613115 |
| Base 16 | 4fb716 | 502916 |