Compare 216640 vs 216647
| Property | 216640 | 216647 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 8 | 1 |
| Prime factorization | 26 × 51 × 6771 | 2166471 |
| Prime factorization | 2 × 2 × 2 × 2 × 2 × 2 × 5 × 677 | 216647 |
| Divisors count | 28 | 2 |
| Divisors | 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 677, 1354, 2708, 3385, 5416, 6770, 10832, 13540, 21664, 27080, 43328, 54160, 108320, 216640 | 1, 216647 |
| Number of properties | 0 | 10 |
| Chen primes | 8059th | |
| Good primes | 1062nd | |
| Long primes | 7237th | |
| Primes | 19333rd | |
| Prime triplets (1st member) | 891st | |
| Sexy primes (1st member) | 4574th | |
| Sexy primes (2nd member) | 4573rd | |
| Sexy prime triplets (2nd member) | 915th | |
| Super primes | 2191st | |
| Twin primes (1st member) | 2297th | |
| Roman numberals | ||
| Base 2 | 1101001110010000002 | 1101001110010001112 |
| Base 3 | 1020000112013 | 1020000112223 |
| Base 4 | 3103210004 | 3103210134 |
| Base 5 | 234130305 | 234130425 |
| Base 6 | 43505446 | 43505556 |
| Base 7 | 15614147 | 15614247 |
| Base 8 | 6471008 | 6471078 |
| Base 9 | 3601519 | 3601589 |
| Base 10 | 21664010 | 21664710 |
| Base 11 | 13884611 | 13885211 |
| Base 12 | a545412 | a545b12 |
| Base 13 | 777b813 | 777c213 |
| Base 14 | 58d4414 | 58d4b14 |
| Base 15 | 442ca15 | 442d215 |
| Base 16 | 34e4016 | 34e4716 |