Compare 42391 vs 42451
| Property | 42391 | 42451 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 423911 | 424511 |
| Prime factorization | 42391 | 42451 |
| Divisors count | 2 | 2 |
| Divisors | 1, 42391 | 1, 42451 |
| Number of properties | 8 | 6 |
| Additive primes | 1979th | |
| Harmonic primes | 1648th | |
| Isolated primes | 3200th | 3206th |
| Lucky primes | 646th | 648th |
| Primes | 4431st | 4439th |
| Sexy primes (1st member) | 1255th | 1259th |
| Sexy prime quadrupletss (1st member) | 48th | |
| Sexy prime triplets (1st member) | 305th | 307th |
| Ulam primes | 335th | |
| Roman numberals | ||
| Base 2 | 10100101100101112 | 10100101110100112 |
| Base 3 | 20110110013 | 20110200213 |
| Base 4 | 221121134 | 221131034 |
| Base 5 | 23240315 | 23243015 |
| Base 6 | 5241316 | 5243116 |
| Base 7 | 2344067 | 2345237 |
| Base 8 | 1226278 | 1227238 |
| Base 9 | 641319 | 642079 |
| Base 10 | 4239110 | 4245110 |
| Base 11 | 2993811 | 2999211 |
| Base 12 | 2064712 | 2069712 |
| Base 13 | 163ab13 | 1642613 |
| Base 14 | 1163d14 | 1168314 |
| Base 15 | c86115 | c8a115 |
| Base 16 | a59716 | a5d316 |