Logic Building/Phase 2 - Level 2: Number-based Looping Logic/Program

Sum of Digits

Calculate sum of digits of a number.

Logic BuildingIntermediate

Logic Building

# Take number
num = int(input("Enter a number: "))

# Sum of digits
digit_sum = 0
temp = abs(num)

while temp > 0:
    digit = temp % 10
    digit_sum += digit
    temp //= 10

print(f"Sum of digits: {digit_sum}")

Output

Enter a number: 1234
Sum of digits: 10

Extract digits and add them.

Key Concepts:

Extract last digit using modulo
Add to sum
Remove last digit using integer division

Check Palindrome Number

Armstrong Number Check