284 (number)
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Two hundred eighty-four (284, CCLXXXIV) is the natural number following 283 and preceding 285.
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| Cardinal | Two hundred [and] eighty-four | ||
| Ordinal | 284th | ||
| Factorization | <math>2^2 \cdot 71<math> | ||
| 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.
In other fields
284 degrees Celsius is the flash point of paper.
See also the year 284.sl:284 (število)