Compare 20921 vs 20928
Property | 20921 | 20928 |
---|---|---|
Type | prime | composite number |
Unique factors | 1 | 3 |
Total factors | 1 | 8 |
Prime factorization | 209211 | 26 × 31 × 1091 |
Prime factorization | 20921 | 2 × 2 × 2 × 2 × 2 × 2 × 3 × 109 |
Divisors count | 2 | 28 |
Divisors | 1, 20921 | 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 109, 192, 218, 327, 436, 654, 872, 1308, 1744, 2616, 3488, 5232, 6976, 10464, 20928 |
Number of properties | 5 | 0 |
Harmonic primes | 864th | |
Isolated primes | 1642nd | |
Primes | 2353rd | |
Pythagorean primes | 1170th | |
Sophie germain primes | 339th | |
Roman numberals | ||
Base 2 | 1010001101110012 | 1010001110000002 |
Base 3 | 10012002123 | 10012010103 |
Base 4 | 110123214 | 110130004 |
Base 5 | 11321415 | 11322035 |
Base 6 | 2405056 | 2405206 |
Base 7 | 1146657 | 1150057 |
Base 8 | 506718 | 507008 |
Base 9 | 316259 | 316339 |
Base 10 | 2092110 | 2092810 |
Base 11 | 1479a11 | 147a611 |
Base 12 | 1013512 | 1014012 |
Base 13 | 96a413 | 96ab13 |
Base 14 | 78a514 | 78ac14 |
Base 15 | 62eb15 | 630315 |
Base 16 | 51b916 | 51c016 |