Compare 21838 vs 21839
| Property | 21838 | 21839 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 611 × 1791 | 218391 |
| Prime factorization | 2 × 61 × 179 | 21839 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 61, 122, 179, 358, 10919, 21838 | 1, 21839 |
| Number of properties | 0 | 5 |
| Additive primes | 1133rd | |
| Chen primes | 1202nd | |
| Harmonic primes | 902nd | |
| Primes | 2449th | |
| Twin primes (1st member) | 372nd | |
| Roman numberals | ||
| Base 2 | 1010101010011102 | 1010101010011112 |
| Base 3 | 10022212113 | 10022212123 |
| Base 4 | 111110324 | 111110334 |
| Base 5 | 11443235 | 11443245 |
| Base 6 | 2450346 | 2450356 |
| Base 7 | 1204457 | 1204467 |
| Base 8 | 525168 | 525178 |
| Base 9 | 328549 | 328559 |
| Base 10 | 2183810 | 2183910 |
| Base 11 | 1545311 | 1545411 |
| Base 12 | 1077a12 | 1077b12 |
| Base 13 | 9c2b13 | 9c2c13 |
| Base 14 | 7d5c14 | 7d5d14 |
| Base 15 | 670d15 | 670e15 |
| Base 16 | 554e16 | 554f16 |