Compare 20681 vs 20807
| Property | 20681 | 20807 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 206811 | 208071 |
| Prime factorization | 20681 | 20807 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20681 | 1, 20807 |
| Number of properties | 5 | 7 |
| Additive primes | 1082nd | 1090th |
| Chen primes | 1154th | |
| Good primes | 258th | |
| Harmonic primes | 858th | |
| Isolated primes | 1628th | |
| Long primes | 890th | |
| Primes | 2329th | 2343rd |
| Pythagorean primes | 1158th | |
| Twin primes (1st member) | 355th | |
| Ulam primes | 174th | |
| Roman numberals | ||
| Base 2 | 1010000110010012 | 1010001010001112 |
| Base 3 | 10011002223 | 10011121223 |
| Base 4 | 110030214 | 110110134 |
| Base 5 | 11302115 | 11312125 |
| Base 6 | 2354256 | 2401556 |
| Base 7 | 1142037 | 1144437 |
| Base 8 | 503118 | 505078 |
| Base 9 | 313289 | 314789 |
| Base 10 | 2068110 | 2080710 |
| Base 11 | 145a111 | 146a611 |
| Base 12 | bb7512 | 1005b12 |
| Base 13 | 954b13 | 961713 |
| Base 14 | 777314 | 782314 |
| Base 15 | 61db15 | 627215 |
| Base 16 | 50c916 | 514716 |