Compare 19840 vs 19841
| Property | 19840 | 19841 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 9 | 1 |
| Prime factorization | 27 × 51 × 311 | 198411 |
| Prime factorization | 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 31 | 19841 |
| Divisors count | 32 | 2 |
| Divisors | 1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 19840 | 1, 19841 |
| Number of properties | 0 | 7 |
| Additive primes | 1043rd | |
| Chen primes | 1105th | |
| Emirps | 625th | |
| Harmonic primes | 812th | |
| Primes | 2244th | |
| Pythagorean primes | 1115th | |
| Twin primes (1st member) | 339th | |
| Roman numberals | ||
| Base 2 | 1001101100000002 | 1001101100000012 |
| Base 3 | 10000122113 | 10000122123 |
| Base 4 | 103120004 | 103120014 |
| Base 5 | 11133305 | 11133315 |
| Base 6 | 2315046 | 2315056 |
| Base 7 | 1115627 | 1115637 |
| Base 8 | 466008 | 466018 |
| Base 9 | 301849 | 301859 |
| Base 10 | 1984010 | 1984110 |
| Base 11 | 139a711 | 139a811 |
| Base 12 | b59412 | b59512 |
| Base 13 | 905213 | 905313 |
| Base 14 | 733214 | 733314 |
| Base 15 | 5d2a15 | 5d2b15 |
| Base 16 | 4d8016 | 4d8116 |