Compare 20509 vs 20663
| Property | 20509 | 20663 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 205091 | 206631 |
| Prime factorization | 20509 | 20663 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20509 | 1, 20663 |
| Number of properties | 5 | 7 |
| Additive primes | 1081st | |
| Chen primes | 1144th | |
| Harmonic primes | 850th | |
| Isolated primes | 1627th | |
| Long primes | 882nd | 886th |
| Lucky primes | 375th | |
| Primes | 2315th | 2328th |
| Pythagorean primes | 1152nd | |
| Safe primes | 197th | |
| Twin primes (2nd member) | 349th | |
| Roman numberals | ||
| Base 2 | 1010000000111012 | 1010000101101112 |
| Base 3 | 10010101213 | 10011000223 |
| Base 4 | 110001314 | 110023134 |
| Base 5 | 11240145 | 11301235 |
| Base 6 | 2345416 | 2353556 |
| Base 7 | 1135367 | 1141467 |
| Base 8 | 500358 | 502678 |
| Base 9 | 311179 | 313089 |
| Base 10 | 2050910 | 2066310 |
| Base 11 | 1445511 | 1458511 |
| Base 12 | ba5112 | bb5b12 |
| Base 13 | 944813 | 953613 |
| Base 14 | 768d14 | 775d14 |
| Base 15 | 612415 | 61c815 |
| Base 16 | 501d16 | 50b716 |