Compare 218287 vs 218290
| Property | 218287 | 218290 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 4 |
| Total factors | 1 | 4 |
| Prime factorization | 2182871 | 21 × 51 × 831 × 2631 |
| Prime factorization | 218287 | 2 × 5 × 83 × 263 |
| Divisors count | 2 | 16 |
| Divisors | 1, 218287 | 1, 2, 5, 10, 83, 166, 263, 415, 526, 830, 1315, 2630, 21829, 43658, 109145, 218290 |
| Number of properties | 5 | 0 |
| Chen primes | 8117th | |
| Isolated primes | 14841st | |
| Long primes | 7285th | |
| Lucky primes | 2484th | |
| Primes | 19466th | |
| Roman numberals | ||
| Base 2 | 1101010100101011112 | 1101010100101100102 |
| Base 3 | 1020021022013 | 1020021022113 |
| Base 4 | 3111022334 | 3111023024 |
| Base 5 | 234411225 | 234411305 |
| Base 6 | 44023316 | 44023346 |
| Base 7 | 15662567 | 15662627 |
| Base 8 | 6522578 | 6522628 |
| Base 9 | 3623819 | 3623849 |
| Base 10 | 21828710 | 21829010 |
| Base 11 | 13a00311 | 13a00611 |
| Base 12 | a63a712 | a63aa12 |
| Base 13 | 7848413 | 7848713 |
| Base 14 | 5979d14 | 597a214 |
| Base 15 | 44a2715 | 44a2a15 |
| Base 16 | 354af16 | 354b216 |