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Earn +20 ptsQ: Is 18 a perfect number
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Is 18 abundant or deficient or perfect number?
18 is abundant
Is 18 a square number why or why not?
It is a square number but not a perfect square. The nearest perfect squares, on either side, are 4^2 = 16 and 5^2 = 25. Since there is no integer between 4 and 5 and the square is a strictly monotonic function, 18 cannot be a perfect square.
Is 18 square?
Yes, in so far as all numbers are squares (of some number). But it is not a perfect square.
What is the sum of the first perfect number and the second perfect number?
The sum of the 1st perfect number and 2nd perfect number is. . . 34!
Can a perfect number be odd?
If by 'perfect number' you mean 'perfect SQUARE', then yes. 49 is an odd number and a perfect square.
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