Compare 20800 vs 20809
| Property | 20800 | 20809 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 9 | 1 |
| Prime factorization | 26 × 52 × 131 | 208091 |
| Prime factorization | 2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 13 | 20809 |
| Divisors count | 42 | 2 |
| Divisors | 1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 130, 160, 200, 208, 260, 320, 325, 400, 416, 520, 650, 800, 832, 1040, 1300, 1600, 2080, 2600, 4160, 5200, 10400, 20800 | 1, 20809 |
| Number of properties | 0 | 5 |
| Additive primes | 1091st | |
| Harmonic primes | 859th | |
| Primes | 2344th | |
| Pythagorean primes | 1165th | |
| Twin primes (2nd member) | 355th | |
| Roman numberals | ||
| Base 2 | 1010001010000002 | 1010001010010012 |
| Base 3 | 10011121013 | 10011122013 |
| Base 4 | 110110004 | 110110214 |
| Base 5 | 11312005 | 11312145 |
| Base 6 | 2401446 | 2402016 |
| Base 7 | 1144337 | 1144457 |
| Base 8 | 505008 | 505118 |
| Base 9 | 314719 | 314819 |
| Base 10 | 2080010 | 2080910 |
| Base 11 | 1469a11 | 146a811 |
| Base 12 | 1005412 | 1006112 |
| Base 13 | 961013 | 961913 |
| Base 14 | 781a14 | 782514 |
| Base 15 | 626a15 | 627415 |
| Base 16 | 514016 | 514916 |