Compare 21647 vs 21839
| Property | 21647 | 21839 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 216471 | 218391 |
| Prime factorization | 21647 | 21839 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21647 | 1, 21839 |
| Number of properties | 4 | 5 |
| Additive primes | 1133rd | |
| Chen primes | 1193rd | 1202nd |
| Harmonic primes | 902nd | |
| Long primes | 918th | |
| Primes | 2430th | 2449th |
| Twin primes (1st member) | 370th | 372nd |
| Roman numberals | ||
| Base 2 | 1010100100011112 | 1010101010011112 |
| Base 3 | 10022002023 | 10022212123 |
| Base 4 | 111020334 | 111110334 |
| Base 5 | 11430425 | 11443245 |
| Base 6 | 2441156 | 2450356 |
| Base 7 | 1200537 | 1204467 |
| Base 8 | 522178 | 525178 |
| Base 9 | 326229 | 328559 |
| Base 10 | 2164710 | 2183910 |
| Base 11 | 1529a11 | 1545411 |
| Base 12 | 1063b12 | 1077b12 |
| Base 13 | 9b1213 | 9c2c13 |
| Base 14 | 7c6314 | 7d5d14 |
| Base 15 | 663215 | 670e15 |
| Base 16 | 548f16 | 554f16 |