Compare 42385 vs 42391
| Property | 42385 | 42391 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 51 × 72 × 1731 | 423911 |
| Prime factorization | 5 × 7 × 7 × 173 | 42391 |
| Divisors count | 12 | 2 |
| Divisors | 1, 5, 7, 35, 49, 173, 245, 865, 1211, 6055, 8477, 42385 | 1, 42391 |
| Number of properties | 0 | 8 |
| Additive primes | 1979th | |
| Harmonic primes | 1648th | |
| Isolated primes | 3200th | |
| Lucky primes | 646th | |
| Primes | 4431st | |
| Sexy primes (1st member) | 1255th | |
| Sexy prime quadrupletss (1st member) | 48th | |
| Sexy prime triplets (1st member) | 305th | |
| Roman numberals | ||
| Base 2 | 10100101100100012 | 10100101100101112 |
| Base 3 | 20110102113 | 20110110013 |
| Base 4 | 221121014 | 221121134 |
| Base 5 | 23240205 | 23240315 |
| Base 6 | 5241216 | 5241316 |
| Base 7 | 2344007 | 2344067 |
| Base 8 | 1226218 | 1226278 |
| Base 9 | 641249 | 641319 |
| Base 10 | 4238510 | 4239110 |
| Base 11 | 2993211 | 2993811 |
| Base 12 | 2064112 | 2064712 |
| Base 13 | 163a513 | 163ab13 |
| Base 14 | 1163714 | 1163d14 |
| Base 15 | c85a15 | c86115 |
| Base 16 | a59116 | a59716 |