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The first 20 perfect numbers are:
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6
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28
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496
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8128
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33,550,336
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8,589,869,056
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137,438,691,328
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2,207,372,036,288
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43,112,609,545,616
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1,112,712,304,462,987,952
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23,274,305,431,112,921,504
Os primeiros 20 números perfeitos são:
1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225, 256, 289, 324, 361, 400.
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Is 20 a perfect number in math?
No. In the first hundred numbers, there are only two perfect numbers: 6, and 28.
What are the first 20 perfect numbers?
149162536496481100121144169196225256289324361400------------The above numbers are squares not perfect numbers. A perfect number n is one that is equal to the proper divisors of n. Here are the first few:628496812833550336858986905613743869132823058430081399521282658455991569831744654692615953842176191561942608236107294793378084303638130997321548169216I don't know if more of them are known. For more information see oeis.org.
Perfect numbers between 20 and 30?
There are no perfect numbers between 20 and 30. Perfect numbers are numbers that are equal to the sum of their proper divisors, excluding the number itself. The perfect numbers within this range would be 28, but that is incorrect as 28 is not a perfect number.
Is 20 a square number or not?
No. Square numbers (or perfect square numbers) are squares of integers. The perfect square numbers are 1, 4, 9, 16, 25, 36 ... 20 is not in the series.
How many perfect numbers are in between 20 and 50?
The only perfect number between 20 and 50 is 28.
How many numbers between 2 and 20 are perfect squares?
Three numbers.
What are the perfect numbers between 1 and 20?
Just 6
What are the first 20 odd numbers?
The first 20 odd numbers are: 13579111315171921232527293133353739.
How many perfect square numbers between 1 to 1000 are?
There are 31 perfect square numbers between 1 and 1000 (including 1).
How many numbers between 20 and 30 are perfect square?
4
What are all the perfect numbers between 20 and 30?
only 28 bro
What are the numbers arranged from 1 to 20 in a circle such that the sum of any two adjacent numbers is a perfect square?
hnmhv
