Compare 20509 vs 20857
| Property | 20509 | 20857 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 205091 | 208571 |
| Prime factorization | 20509 | 20857 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20509 | 1, 20857 |
| Number of properties | 5 | 4 |
| Isolated primes | 1637th | |
| Long primes | 882nd | 891st |
| Lucky primes | 375th | |
| Primes | 2315th | 2346th |
| Pythagorean primes | 1152nd | 1167th |
| Twin primes (2nd member) | 349th | |
| Roman numberals | ||
| Base 2 | 1010000000111012 | 1010001011110012 |
| Base 3 | 10010101213 | 10011211113 |
| Base 4 | 110001314 | 110113214 |
| Base 5 | 11240145 | 11314125 |
| Base 6 | 2345416 | 2403216 |
| Base 7 | 1135367 | 1145447 |
| Base 8 | 500358 | 505718 |
| Base 9 | 311179 | 315449 |
| Base 10 | 2050910 | 2085710 |
| Base 11 | 1445511 | 1474111 |
| Base 12 | ba5112 | 100a112 |
| Base 13 | 944813 | 965513 |
| Base 14 | 768d14 | 785b14 |
| Base 15 | 612415 | 62a715 |
| Base 16 | 501d16 | 517916 |