18. 1+8=9 9x2=18
47 Impossible problem!
8 is the same as the sum of the digits of its cube, 512.
If the sum of a number and 4 is (X + 4) then twice that is 2(X + 4) which is 2X + 8
24
362x(3x6)
18
18 is the only number that matches these criteria.
Yes, unless you include 0.
18 is the only number (other than 0) that is twice the sum of its digits.
the sum of my digits is 6? answer=60
The units digit of a two digit number exceeds twice the tens digit by 1. Find the number if the sum of its digits is 10.
Add the digits together. The sum of the digits of 23 is 5.
The sum of the digits of a number often reveals patterns, such as divisibility rules. For example, a number is divisible by 3 if the sum of its digits is divisible by 3. Additionally, the sum can provide insights into the number's properties, such as whether it is odd or even. Observing the sum of digits can also help identify sequences or trends in larger datasets.
None. The sum of one digit can't be twice the size of the digit.
The number is 45. The sum of its digits i.e. 4+5=9 Five times the sum of its digits i.e. 5 times 9 which is 45
18 1 + 8 = 9 and 9 x 2 = 18
47 Impossible problem!