284 (number)
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Two hundred eighty-four (284, CCLXXXIV) is the natural number following 283 and preceding 285.
| Cardinal | Two hundred [and] eighty-four |
| Ordinal | 284th |
| Factorization |  |
| Roman numeral | CCLXXXIV |
| Binary | 100011100 |
| Hexadecimal | 11C |
Its divisors are 1, 2, 4, 71, and 142, adding up to 220, in turn, the divisors of 220 add up to 284, making the two a pair of amicable numbers.
There is no answer to the equation φ(x) = 284, making 284 a nontotient.
[edit] In other fields
284 degrees Celsius is the flash point of paper.
See also the year 284.
