Compare 20807 vs 21121
| Property | 20807 | 21121 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 208071 | 211211 |
| Prime factorization | 20807 | 21121 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20807 | 1, 21121 |
| Number of properties | 7 | 4 |
| Additive primes | 1090th | 1102nd |
| Chen primes | 1154th | |
| Harmonic primes | 858th | |
| Isolated primes | 1655th | |
| Long primes | 890th | |
| Primes | 2343rd | 2374th |
| Pythagorean primes | 1179th | |
| Twin primes (1st member) | 355th | |
| Ulam primes | 174th | |
| Roman numberals | ||
| Base 2 | 1010001010001112 | 1010010100000012 |
| Base 3 | 10011121223 | 10012220213 |
| Base 4 | 110110134 | 110220014 |
| Base 5 | 11312125 | 11334415 |
| Base 6 | 2401556 | 2414416 |
| Base 7 | 1144437 | 1154027 |
| Base 8 | 505078 | 512018 |
| Base 9 | 314789 | 318679 |
| Base 10 | 2080710 | 2112110 |
| Base 11 | 146a611 | 1496111 |
| Base 12 | 1005b12 | 1028112 |
| Base 13 | 961713 | 97c913 |
| Base 14 | 782314 | 79a914 |
| Base 15 | 627215 | 63d115 |
| Base 16 | 514716 | 528116 |