Compare 42157 vs 42391
| Property | 42157 | 42391 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 421571 | 423911 |
| Prime factorization | 42157 | 42391 |
| Divisors count | 2 | 2 |
| Divisors | 1, 42157 | 1, 42391 |
| Number of properties | 5 | 8 |
| Additive primes | 1965th | 1979th |
| Harmonic primes | 1641st | 1648th |
| Isolated primes | 3181st | 3200th |
| Lucky primes | 646th | |
| Primes | 4406th | 4431st |
| Pythagorean primes | 2184th | |
| Sexy primes (1st member) | 1255th | |
| Sexy prime quadrupletss (1st member) | 48th | |
| Sexy prime triplets (1st member) | 305th | |
| Roman numberals | ||
| Base 2 | 10100100101011012 | 10100101100101112 |
| Base 3 | 20102111013 | 20110110013 |
| Base 4 | 221022314 | 221121134 |
| Base 5 | 23221125 | 23240315 |
| Base 6 | 5231016 | 5241316 |
| Base 7 | 2336237 | 2344067 |
| Base 8 | 1222558 | 1226278 |
| Base 9 | 637419 | 641319 |
| Base 10 | 4215710 | 4239110 |
| Base 11 | 2974511 | 2993811 |
| Base 12 | 2049112 | 2064712 |
| Base 13 | 1625b13 | 163ab13 |
| Base 14 | 1151314 | 1163d14 |
| Base 15 | c75715 | c86115 |
| Base 16 | a4ad16 | a59716 |