284 (number)

In mathematics

• 284 is an even composite number with 2 distinct prime factors.
• 284 is in the first pair of amicable numbers with 220. That means that the sum of the proper divisors are the same between the two numbers.
• 284 can be written as a sum of exactly 4 nonzero perfect squares.
• 284 is a nontotient number which are numbers where phi equaling that number has no solution.
• 284 is a number that is the nth prime plus n. It is the 51st prime number plus 51.