Compare 666420 vs 666431
| Property | 666420 | 666431 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 5 | 1 |
| Total factors | 6 | 1 |
| Prime factorization | 22 × 31 × 51 × 291 × 3831 | 6664311 |
| Prime factorization | 2 × 2 × 3 × 5 × 29 × 383 | 666431 |
| Divisors count | 48 | 2 |
| Divisors | 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 383, 435, 580, 766, 870, 1149, 1532, 1740, 1915, 2298, 3830, 4596, 5745, 7660, 11107, 11490, 22214, 22980, 33321, 44428, 55535, 66642, 111070, 133284, 166605, 222140, 333210, 666420 | 1, 666431 |
| Number of properties | 0 | 10 |
| Chen primes | 21134th | |
| Cousin primes (2nd member) | 5828th | |
| Primes | 54051st | |
| Prime quadruplets (1st member) | 130th | |
| Prime quintuplet 1s (2nd member) | 26th | |
| Prime triplets (1st member) | 2128th | |
| Prime triplets (2nd member) | 2127th | |
| Sexy primes (1st member) | 11664th | |
| Twin primes (1st member) | 5833rd | |
| Ulam primes | 3969th | |
| Roman numberals | ||
| Base 2 | 101000101011001101002 | 101000101011001111112 |
| Base 3 | 10202120110203 | 10202120111223 |
| Base 4 | 22022303104 | 22022303334 |
| Base 5 | 1323111405 | 1323112115 |
| Base 6 | 221411406 | 221411556 |
| Base 7 | 54436267 | 54436437 |
| Base 8 | 24254648 | 24254778 |
| Base 9 | 12251369 | 12251489 |
| Base 10 | 66642010 | 66643110 |
| Base 11 | 41576711 | 41577711 |
| Base 12 | 2817b012 | 2817bb12 |
| Base 13 | 1a444113 | 1a444c13 |
| Base 14 | 134c1614 | 134c2314 |
| Base 15 | d26d015 | d26db15 |
| Base 16 | a2b3416 | a2b3f16 |