Compare 838 vs 839
| Property | 838 | 839 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 21 × 4191 | 8391 |
| Prime factorization | 2 × 419 | 839 |
| Divisors count | 4 | 2 |
| Divisors | 1, 2, 419, 838 | 1, 839 |
| Number of properties | 1 | 4 |
| Chen primes | 100th | |
| Isolated primes | 81st | |
| Primes | 146th | |
| Safe primes | 22nd | |
| Semiprimes | 252nd | |
| Roman numberals | DCCCXXXVIII | DCCCXXXIX |
| Base 2 | 11010001102 | 11010001112 |
| Base 3 | 10110013 | 10110023 |
| Base 4 | 310124 | 310134 |
| Base 5 | 113235 | 113245 |
| Base 6 | 35146 | 35156 |
| Base 7 | 23057 | 23067 |
| Base 8 | 15068 | 15078 |
| Base 9 | 11319 | 11329 |
| Base 10 | 83810 | 83910 |
| Base 11 | 6a211 | 6a311 |
| Base 12 | 59a12 | 59b12 |
| Base 13 | 4c613 | 4c713 |
| Base 14 | 43c14 | 43d14 |
| Base 15 | 3ad15 | 3ae15 |
| Base 16 | 34616 | 34716 |