Compare 1840 vs 1847
| Property | 1840 | 1847 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 6 | 1 |
| Prime factorization | 24 × 51 × 231 | 18471 |
| Prime factorization | 2 × 2 × 2 × 2 × 5 × 23 | 1847 |
| Divisors count | 20 | 2 |
| Divisors | 1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840 | 1, 1847 |
| Number of properties | 0 | 9 |
| Chen primes | 175th | |
| Emirps | 89th | |
| Good primes | 57th | |
| Happy primes | 53rd | |
| Harmonic primes | 102nd | |
| Isolated primes | 172nd | |
| Long primes | 111th | |
| Primes | 283rd | |
| Super primes | 61st | |
| Roman numberals | MDCCCXL | MDCCCXLVII |
| Base 2 | 111001100002 | 111001101112 |
| Base 3 | 21120113 | 21121023 |
| Base 4 | 1303004 | 1303134 |
| Base 5 | 243305 | 243425 |
| Base 6 | 123046 | 123156 |
| Base 7 | 52367 | 52467 |
| Base 8 | 34608 | 34678 |
| Base 9 | 24649 | 24729 |
| Base 10 | 184010 | 184710 |
| Base 11 | 142311 | 142a11 |
| Base 12 | 109412 | 109b12 |
| Base 13 | ab713 | ac113 |
| Base 14 | 95614 | 95d14 |
| Base 15 | 82a15 | 83215 |
| Base 16 | 73016 | 73716 |