Compare 20807 vs 20811
| Property | 20807 | 20811 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 208071 | 31 × 71 × 9911 |
| Prime factorization | 20807 | 3 × 7 × 991 |
| Divisors count | 2 | 8 |
| Divisors | 1, 20807 | 1, 3, 7, 21, 991, 2973, 6937, 20811 |
| Number of properties | 7 | 0 |
| Additive primes | 1090th | |
| Chen primes | 1154th | |
| Harmonic primes | 858th | |
| Long primes | 890th | |
| Primes | 2343rd | |
| Twin primes (1st member) | 355th | |
| Ulam primes | 174th | |
| Roman numberals | ||
| Base 2 | 1010001010001112 | 1010001010010112 |
| Base 3 | 10011121223 | 10011122103 |
| Base 4 | 110110134 | 110110234 |
| Base 5 | 11312125 | 11312215 |
| Base 6 | 2401556 | 2402036 |
| Base 7 | 1144437 | 1144507 |
| Base 8 | 505078 | 505138 |
| Base 9 | 314789 | 314839 |
| Base 10 | 2080710 | 2081110 |
| Base 11 | 146a611 | 146aa11 |
| Base 12 | 1005b12 | 1006312 |
| Base 13 | 961713 | 961b13 |
| Base 14 | 782314 | 782714 |
| Base 15 | 627215 | 627615 |
| Base 16 | 514716 | 514b16 |