Compare 42220 vs 42221
| Property | 42220 | 42221 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 22 × 51 × 21111 | 422211 |
| Prime factorization | 2 × 2 × 5 × 2111 | 42221 |
| Divisors count | 12 | 2 |
| Divisors | 1, 2, 4, 5, 10, 20, 2111, 4222, 8444, 10555, 21110, 42220 | 1, 42221 |
| Number of properties | 0 | 9 |
| Additive primes | 1970th | |
| Chen primes | 2073rd | |
| Long primes | 1661st | |
| Primes | 4414th | |
| Prime triplets (1st member) | 287th | |
| Pythagorean primes | 2190th | |
| Sexy primes (1st member) | 1251st | |
| Sophie germain primes | 589th | |
| Twin primes (1st member) | 615th | |
| Roman numberals | ||
| Base 2 | 10100100111011002 | 10100100111011012 |
| Base 3 | 20102202013 | 20102202023 |
| Base 4 | 221032304 | 221032314 |
| Base 5 | 23223405 | 23223415 |
| Base 6 | 5232446 | 5232456 |
| Base 7 | 2340437 | 2340447 |
| Base 8 | 1223548 | 1223558 |
| Base 9 | 638219 | 638229 |
| Base 10 | 4222010 | 4222110 |
| Base 11 | 297a211 | 297a311 |
| Base 12 | 2052412 | 2052512 |
| Base 13 | 162a913 | 162aa13 |
| Base 14 | 1155a14 | 1155b14 |
| Base 15 | c79a15 | c79b15 |
| Base 16 | a4ec16 | a4ed16 |