Compare 20921 vs 21221
Property | 20921 | 21221 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 209211 | 212211 |
Prime factorization | 20921 | 21221 |
Divisors count | 2 | 2 |
Divisors | 1, 20921 | 1, 21221 |
Number of properties | 5 | 6 |
Chen primes | 1172nd | |
Harmonic primes | 864th | |
Isolated primes | 1642nd | 1665th |
Primes | 2353rd | 2386th |
Pythagorean primes | 1170th | 1184th |
Sexy primes (1st member) | 723rd | |
Sophie germain primes | 339th | 346th |
Roman numberals | ||
Base 2 | 1010001101110012 | 1010010111001012 |
Base 3 | 10012002123 | 10020022223 |
Base 4 | 110123214 | 110232114 |
Base 5 | 11321415 | 11343415 |
Base 6 | 2405056 | 2421256 |
Base 7 | 1146657 | 1156047 |
Base 8 | 506718 | 513458 |
Base 9 | 316259 | 320889 |
Base 10 | 2092110 | 2122110 |
Base 11 | 1479a11 | 14a4211 |
Base 12 | 1013512 | 1034512 |
Base 13 | 96a413 | 987513 |
Base 14 | 78a514 | 7a3b14 |
Base 15 | 62eb15 | 644b15 |
Base 16 | 51b916 | 52e516 |