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What is a perfect square if the digits sum is 4?
11 squared is 121
Difference between square and perfect square?
None, although "perfect square" tends to be used for whole numbers.
What number is a perfect square that is a 3 digits number which ends with 2?
There are none.
What is the meaning of perfect square numbers?
1
How many numbers from 1976 to 2013 are perfect square numbers?
None. √1976 is "44 and a bit" → first perfect square ≥ 1976 is 452 = 2025 As 1976 is not a perfect square and the first perfect square greater than 1976 is 2025, and 2025 is greater than 2013, there are no perfect squares from 1976 to 2013.
How many two digit numbers have digits whose sum is a perfect square?
69
How many of the numbers from 10 through 98 have the sum of their digits equal to a perfect and 8203 square?
There are 17 such numbers.
How many numbers from 10 through 95 have the sum of their digits equal to a perfect square?
16 of them.
How many numbers from 10 through 100 have the sum of their digits equal to a perfect square?
18
How many numbers from 10 through 84 have the sum of their digits equal to a perfect square?
14
How many 2 digits numbers are such that the difference of the number and the number with the digits reversed is a perfect square?
If the number with the digits reversed can have a leading 0 so that it is a 1-digit number, then 16. Otherwise 13.
How many numbers from 10 through 97 have the sum of their digits equal to a perfect square?
17 of them. 17 of them. 17 of them. 17 of them.
What is the perfect square if the digits sum is 4?
121.
How many of the numbers from 10 to 96 have the sum of their digits equal to a perfect square?
the highest sum of the numbers is 17 and the lowest is 1. The only perfect squares in that range are 1,4,9, and 16. That means the following numbers will work: 10,13.18,22,27,31,36,40,45,54,63,72,79,81,88, and 90; that is 16 numbers
What is the perfect square palindrome of 6 digits?
8362 = 698896
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.
What is a perfect square if the digits sum is 4?
11 squared is 121
