Compare 19888 vs 19891
| Property | 19888 | 19891 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 6 | 1 |
| Prime factorization | 24 × 111 × 1131 | 198911 |
| Prime factorization | 2 × 2 × 2 × 2 × 11 × 113 | 19891 |
| Divisors count | 20 | 2 |
| Divisors | 1, 2, 4, 8, 11, 16, 22, 44, 88, 113, 176, 226, 452, 904, 1243, 1808, 2486, 4972, 9944, 19888 | 1, 19891 |
| Number of properties | 0 | 4 |
| Harmonic primes | 815th | |
| Palindromic primes | 45th | |
| Primes | 2250th | |
| Twin primes (2nd member) | 340th | |
| Roman numberals | ||
| Base 2 | 1001101101100002 | 1001101101100112 |
| Base 3 | 10000211213 | 10000212013 |
| Base 4 | 103123004 | 103123034 |
| Base 5 | 11140235 | 11140315 |
| Base 6 | 2320246 | 2320316 |
| Base 7 | 1116617 | 1116647 |
| Base 8 | 466608 | 466638 |
| Base 9 | 302479 | 302519 |
| Base 10 | 1988810 | 1989110 |
| Base 11 | 13a4011 | 13a4311 |
| Base 12 | b61412 | b61712 |
| Base 13 | 908b13 | 909113 |
| Base 14 | 736814 | 736b14 |
| Base 15 | 5d5d15 | 5d6115 |
| Base 16 | 4db016 | 4db316 |