Compare 820 vs 829
| Property | 820 | 829 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 22 × 51 × 411 | 8291 |
| Prime factorization | 2 × 2 × 5 × 41 | 829 |
| Divisors count | 12 | 2 |
| Divisors | 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820 | 1, 829 |
| Number of properties | 0 | 9 |
| Additive primes | 78th | |
| Centered triangular primes | 8th | |
| Chen primes | 99th | |
| Primes | 145th | |
| Prime quadruplets (4th member) | 5th | |
| Prime triplets (3rd member) | 26th | |
| Pythagorean primes | 70th | |
| Sexy primes (2nd member) | 65th | |
| Twin primes (2nd member) | 33rd | |
| Roman numberals | DCCCXX | DCCCXXIX |
| Base 2 | 11001101002 | 11001111012 |
| Base 3 | 10101013 | 10102013 |
| Base 4 | 303104 | 303314 |
| Base 5 | 112405 | 113045 |
| Base 6 | 34446 | 35016 |
| Base 7 | 22517 | 22637 |
| Base 8 | 14648 | 14758 |
| Base 9 | 11119 | 11219 |
| Base 10 | 82010 | 82910 |
| Base 11 | 68611 | 69411 |
| Base 12 | 58412 | 59112 |
| Base 13 | 4b113 | 4ba13 |
| Base 14 | 42814 | 43314 |
| Base 15 | 39a15 | 3a415 |
| Base 16 | 33416 | 33d16 |