Compare 20921 vs 21269
| Property | 20921 | 21269 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 209211 | 212691 |
| Prime factorization | 20921 | 21269 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20921 | 1, 21269 |
| Number of properties | 5 | 7 |
| Chen primes | 1173rd | |
| Harmonic primes | 864th | 875th |
| Isolated primes | 1642nd | 1668th |
| Long primes | 908th | |
| Primes | 2353rd | 2389th |
| Pythagorean primes | 1170th | 1185th |
| Sophie germain primes | 339th | |
| Super primes | 355th | |
| Roman numberals | ||
| Base 2 | 1010001101110012 | 1010011000101012 |
| Base 3 | 10012002123 | 10020112023 |
| Base 4 | 110123214 | 110301114 |
| Base 5 | 11321415 | 11400345 |
| Base 6 | 2405056 | 2422456 |
| Base 7 | 1146657 | 1160037 |
| Base 8 | 506718 | 514258 |
| Base 9 | 316259 | 321529 |
| Base 10 | 2092110 | 2126910 |
| Base 11 | 1479a11 | 14a8611 |
| Base 12 | 1013512 | 1038512 |
| Base 13 | 96a413 | 98b113 |
| Base 14 | 78a514 | 7a7314 |
| Base 15 | 62eb15 | 647e15 |
| Base 16 | 51b916 | 531516 |