284 (number)

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Two hundred eighty-four (284, CCLXXXIV) is the natural number following 283 and preceding 285.

List of numbers — Integers ← 0 100 200 300 400 500 600 700 800 900 →
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.