Forgot password? New user? Sign up
Existing user? Log in
∑r=1101000r2\Large\displaystyle\sum_{r=1}^{10^{1000}} r^2r=1∑101000r2
What is the value of the sum of digits of the summation above?
Bonus: Generalize for 10n10^n10n.
Problem Loading...
Note Loading...
Set Loading...