Compare 2840 vs 2851
| Property | 2840 | 2851 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 23 × 51 × 711 | 28511 |
| Prime factorization | 2 × 2 × 2 × 5 × 71 | 2851 |
| Divisors count | 16 | 2 |
| Divisors | 1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840 | 1, 2851 |
| Number of properties | 0 | 6 |
| Happy primes | 70th | |
| Isolated primes | 255th | |
| Long primes | 167th | |
| Lucky primes | 87th | |
| Primes | 414th | |
| Sexy primes (1st member) | 165th | |
| Roman numberals | MMDCCCXL | MMDCCCLI |
| Base 2 | 1011000110002 | 1011001000112 |
| Base 3 | 102200123 | 102201213 |
| Base 4 | 2301204 | 2302034 |
| Base 5 | 423305 | 424015 |
| Base 6 | 210526 | 211116 |
| Base 7 | 111657 | 112127 |
| Base 8 | 54308 | 54438 |
| Base 9 | 38059 | 38179 |
| Base 10 | 284010 | 285110 |
| Base 11 | 215211 | 216211 |
| Base 12 | 178812 | 179712 |
| Base 13 | 13a613 | 13b413 |
| Base 14 | 106c14 | 107914 |
| Base 15 | c9515 | ca115 |
| Base 16 | b1816 | b2316 |