Compare 21392 vs 21397
| Property | 21392 | 21397 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 6 | 1 |
| Prime factorization | 24 × 71 × 1911 | 213971 |
| Prime factorization | 2 × 2 × 2 × 2 × 7 × 191 | 21397 |
| Divisors count | 20 | 2 |
| Divisors | 1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 191, 382, 764, 1337, 1528, 2674, 3056, 5348, 10696, 21392 | 1, 21397 |
| Number of properties | 0 | 5 |
| Cousin primes (1st member) | 365th | |
| Isolated primes | 1677th | |
| Primes | 2402nd | |
| Pythagorean primes | 1191st | |
| Sexy primes (2nd member) | 729th | |
| Roman numberals | ||
| Base 2 | 1010011100100002 | 1010011100101012 |
| Base 3 | 10021000223 | 10021001113 |
| Base 4 | 110321004 | 110321114 |
| Base 5 | 11410325 | 11410425 |
| Base 6 | 2430126 | 2430216 |
| Base 7 | 1162407 | 1162457 |
| Base 8 | 516208 | 516258 |
| Base 9 | 323089 | 323149 |
| Base 10 | 2139210 | 2139710 |
| Base 11 | 1508811 | 1509211 |
| Base 12 | 1046812 | 1047112 |
| Base 13 | 997713 | 997c13 |
| Base 14 | 7b2014 | 7b2514 |
| Base 15 | 651215 | 651715 |
| Base 16 | 539016 | 539516 |