Compare 21397 vs 21601
| Property | 21397 | 21601 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 213971 | 216011 |
| Prime factorization | 21397 | 21601 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21397 | 1, 21601 |
| Number of properties | 5 | 4 |
| Cousin primes (1st member) | 365th | |
| Harmonic primes | 893rd | |
| Isolated primes | 1677th | |
| Primes | 2402nd | 2426th |
| Pythagorean primes | 1191st | 1203rd |
| Sexy primes (2nd member) | 729th | |
| Twin primes (2nd member) | 368th | |
| Roman numberals | ||
| Base 2 | 1010011100101012 | 1010100011000012 |
| Base 3 | 10021001113 | 10021220013 |
| Base 4 | 110321114 | 111012014 |
| Base 5 | 11410425 | 11424015 |
| Base 6 | 2430216 | 2440016 |
| Base 7 | 1162457 | 1166567 |
| Base 8 | 516258 | 521418 |
| Base 9 | 323149 | 325619 |
| Base 10 | 2139710 | 2160110 |
| Base 11 | 1509211 | 1525811 |
| Base 12 | 1047112 | 1060112 |
| Base 13 | 997c13 | 9aa813 |
| Base 14 | 7b2514 | 7c2d14 |
| Base 15 | 651715 | 660115 |
| Base 16 | 539516 | 546116 |