Compare 218987 vs 220897
| Property | 218987 | 220897 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2189871 | 2208971 |
| Prime factorization | 218987 | 220897 |
| Divisors count | 2 | 2 |
| Divisors | 1, 218987 | 1, 220897 |
| Number of properties | 6 | 6 |
| Chen primes | 8141st | |
| Cousin primes (1st member) | 2326th | |
| Happy primes | 2966th | |
| Isolated primes | 15021st | |
| Primes | 19525th | 19688th |
| Prime triplets (1st member) | 902nd | 909th |
| Pythagorean primes | 9823rd | |
| Sexy primes (1st member) | 4619th | 4655th |
| Twin primes (1st member) | 2320th | |
| Roman numberals | ||
| Base 2 | 1101010111011010112 | 1101011110111000012 |
| Base 3 | 1020101011223 | 1020200001013 |
| Base 4 | 3111312234 | 3113232014 |
| Base 5 | 240014225 | 240320425 |
| Base 6 | 44054556 | 44224016 |
| Base 7 | 16013067 | 16100057 |
| Base 8 | 6535538 | 6573418 |
| Base 9 | 3633489 | 3660119 |
| Base 10 | 21898710 | 22089710 |
| Base 11 | 13a58a11 | 140a6611 |
| Base 12 | a688b12 | a7a0112 |
| Base 13 | 788a213 | 7971113 |
| Base 14 | 59b3d14 | 5a70514 |
| Base 15 | 44d4215 | 456b715 |
| Base 16 | 3576b16 | 35ee116 |