205 + 10 + 10
403
The factors of 49 are 1, 7, and 49. When you add them together you get 57, which is the sum.
The factors of 225 are: 1, 3, 5, 9, 15, 25, 45, 75, 225. The sum of the factors is: 403
Formula for sum of first natural number = n(n+1)/2 , here n=225 so, answer is 225(225+1)/2 = 25425
225
what is 36+225
725
The square root of 100 = 10 The square root of 225 = 15 The sum = 10 + 15 = 25
The number 225 is a perfect square, as it is the result of multiplying 15 by itself (15 x 15). It can also be expressed as the sum of consecutive odd numbers: 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 = 225. Additionally, 225 has factors including 1, 3, 5, 9, 15, 25, 45, 75, and 225.
225
The sum of the first 15 odd numbers is 225.
The count of the numbers is 410+1+400 = 811. To get the sum of all these numbers note that all the positive numbers cancel with their negative counterparts and you are left only with the numbers from -410 to -401 (inclusive). The sum of these numbers is -4055. So their mean is Sum/Count = -4055/811 = -5.