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Find the Sum of Digits of a Number Using Recursion

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A Python program to find the sum of digits of a number using recursion.

Here’s a explanation of the code in points:

Function Definition: sum_of_digits(number) calculates the sum of digits of the given number using recursion.
Base Case: If the number is 0, the function returns 0 (ending the recursion).
Recursive Case: If the number is not 0, it adds the last digit (number % 10) to the sum of digits of the rest of the number (sum_of_digits(number // 10)).
User Input: Takes a number as input from the user.
Output: Prints the sum of digits of the given number.

Program:

def sum_of_digits(number):
    if number == 0:
        return 0
    else:
        return number % 10 + sum_of_digits(number // 10)


num = int(input("Enter a number: "))
print(f"The sum of digits of {num} is {sum_of_digits(num)}")

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Find the Sum of Digits of a Number Using Recursion

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