Compare 20509 vs 20517
| Property | 20509 | 20517 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 205091 | 31 × 71 × 9771 |
| Prime factorization | 20509 | 3 × 7 × 977 |
| Divisors count | 2 | 8 |
| Divisors | 1, 20509 | 1, 3, 7, 21, 977, 2931, 6839, 20517 |
| Number of properties | 5 | 0 |
| Long primes | 882nd | |
| Lucky primes | 375th | |
| Primes | 2315th | |
| Pythagorean primes | 1152nd | |
| Twin primes (2nd member) | 349th | |
| Roman numberals | ||
| Base 2 | 1010000000111012 | 1010000001001012 |
| Base 3 | 10010101213 | 10010102203 |
| Base 4 | 110001314 | 110002114 |
| Base 5 | 11240145 | 11240325 |
| Base 6 | 2345416 | 2345536 |
| Base 7 | 1135367 | 1135507 |
| Base 8 | 500358 | 500458 |
| Base 9 | 311179 | 311269 |
| Base 10 | 2050910 | 2051710 |
| Base 11 | 1445511 | 1446211 |
| Base 12 | ba5112 | ba5912 |
| Base 13 | 944813 | 945313 |
| Base 14 | 768d14 | 769714 |
| Base 15 | 612415 | 612c15 |
| Base 16 | 501d16 | 502516 |