Python program to Reverse a Number
In this tutorial, we will discuss a Python program to reverse a number.
Before going to the program first, let us understand what is a Reverse Number.
Reverse Number:
- The reverse of a number is a mathematical method to obtain from a number another written in the opposite way to the first.
- For example, reversing the number 1234 gives 4321.
Related: Python Program to Check Leap Year
Program code to reverse a number using Python
# Reverse a Number in Python def reverse_number(num): return int(str(num)[::-1]) number = int(input("Enter a number: ")) print(f"The reverse of {number} is {reverse_number(number)}.")
Explanation
- Function Definition: The
reverse_number
function takes an integernum
as input and returns the reverse of the number. - Reverse Calculation: The function converts the number to a string, reverses the string using slicing, and converts it back to an integer.
- Main Program: The program prompts the user to enter a number and then calculates the reverse of the number using the
reverse_number
function.
Output
- When you run the above program, it will prompt you to enter a number. After entering the number, it will reverse the number and print the result.
Conclusion
- In this tutorial, we learned how to reverse a given number using a Python program.
- Understanding this concept is essential for solving various mathematical problems and competitive programming challenges.
- Practice this example to enhance your programming skills and understanding of number manipulation.