Compare 20551 vs 20561
| Property | 20551 | 20561 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 205511 | 291 × 7091 |
| Prime factorization | 20551 | 29 × 709 |
| Divisors count | 2 | 4 |
| Divisors | 1, 20551 | 1, 29, 709, 20561 |
| Number of properties | 4 | 1 |
| Additive primes | 1077th | |
| Lucky primes | 376th | |
| Primes | 2320th | |
| Semiprimes | 5216th | |
| Twin primes (2nd member) | 350th | |
| Roman numberals | ||
| Base 2 | 1010000010001112 | 1010000010100012 |
| Base 3 | 10010120113 | 10010121123 |
| Base 4 | 110010134 | 110011014 |
| Base 5 | 11242015 | 11242215 |
| Base 6 | 2350516 | 2351056 |
| Base 7 | 1136267 | 1136427 |
| Base 8 | 501078 | 501218 |
| Base 9 | 311649 | 311759 |
| Base 10 | 2055110 | 2056110 |
| Base 11 | 1449311 | 144a211 |
| Base 12 | ba8712 | ba9512 |
| Base 13 | 947b13 | 948813 |
| Base 14 | 76bd14 | 76c914 |
| Base 15 | 615115 | 615b15 |
| Base 16 | 504716 | 505116 |