Compare 829 vs 840
| Property | 829 | 840 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 4 |
| Total factors | 1 | 6 |
| Prime factorization | 8291 | 23 × 31 × 51 × 71 |
| Prime factorization | 829 | 2 × 2 × 2 × 3 × 5 × 7 |
| Divisors count | 2 | 32 |
| Divisors | 1, 829 | 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840 |
| Number of properties | 9 | 0 |
| 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 | DCCCXXIX | DCCCXL |
| Base 2 | 11001111012 | 11010010002 |
| Base 3 | 10102013 | 10110103 |
| Base 4 | 303314 | 310204 |
| Base 5 | 113045 | 113305 |
| Base 6 | 35016 | 35206 |
| Base 7 | 22637 | 23107 |
| Base 8 | 14758 | 15108 |
| Base 9 | 11219 | 11339 |
| Base 10 | 82910 | 84010 |
| Base 11 | 69411 | 6a411 |
| Base 12 | 59112 | 5a012 |
| Base 13 | 4ba13 | 4c813 |
| Base 14 | 43314 | 44014 |
| Base 15 | 3a415 | 3b015 |
| Base 16 | 33d16 | 34816 |