So you’ve learned about programming and how to use it to solve problems . But now you want to reverse the numbers in a program. Here’s how to do it without too much trouble. Reverse a number in programming is a process of reversing the order of operations for a set of integers. The reverse order is usually denoted by the symbol “r”. Reverse engineering an algorithm or program begins with understanding how it works and then reversing the code to understand what was done before. There are a few different ways to reverse a number , but one common approach is to use a computer algorithm or program that can be found online.

**How do you reverse a number in programming?** : Let’s see a simple c example to reverse a given number.

#include

int main()

{

int n, reverse=0, rem;

printf(“Enter a number: “);

scanf(“%d”, &n);

while(n!=0)

{

Table of Contents

### How do you reverse a number in a for loop?

In this section, we will learn how to reverse a number in Java using while loop, for loop and recursion. In the above program, we can also write the for loop as follows:

for(;number != 0;)

{

int remainder = number % 10;

reverse = reverse * 10 + remainder;

number=number/10;

}

### How do you reverse a number without a loop?

How to reverse a 3 digit number

Declare the int into num1, num2 and num3 along witht the output, reverse.

Ask the user to enter a number to reverse.

Store the number using scanf.

Get the last digit of the number , num1= n/100.

Get the middle digit from the user, num2=(num%100)/10.

### How do you reverse a 5 digit number?

h> int main() { int num; long int a,reversenum=0; printf(“Enter the 5 digit number(Not Greater Than 32767):\n”); scanf(“%d”,&num); a=num%10; num= num/10; reversenum=reversenum+a*10000; a=num%10; num=num/10; reversenum=reversenum+a*1000; a=num%10; num=num/10; reversenum=reversenum+a*100; a=num%10; num=num/10; reversenum

## Additional Question — How do you reverse a number in programming?

### What is the logic to reverse a number?

The while loop keeps running until n reaches 2345, whereupon the reverse number is computed and the value of n is reduced by 10 times.

### How do you reverse a 3 digit number in Python?

Reverse Number In Python

# Python Program to Reverse a Number using While loop.

Number = int(input(“Please Enter any Number: “))

Reverse = 0.

while(Number > 0):

Reminder = Number %10.

Reverse = (Reverse *10) + Reminder.

Number = Number //10.

print(“\n Reverse of entered number is = %d” %Reverse)

### How do you reverse a 5 digit number in Python?

Algorithm

Input Integer: number.

(1) Initialize variable revs_number = 0.

(2) Loop while number > 0.

(a) Multiply revs_number by 10 and add remainder of number.

divide by 10 to revs_number.

revs_number = revs_number*10 + number%10;

(b) Divide num by 10.

(3) Return revs_number.

### How do you reverse a large number in Python?

First, the remainder of the number divided by 10 is stored in the variable digit . Next, the digit contains the last digit of num , i.e. 4. The digit is then added to the variable reversed after multiplying it by 10. Multiplication by 10 adds a new place in the reversed number.

### How do you reverse a number in python without loop?

If the input number is not an integer, it will be converted to an integer and stored in reverse. If the input number is an integer, then it will be checked to see if it is greater than 0 or not. If it is, then the value of reverse will be incremented by 1.

### Is Armstrong a number?

A Armstrong number is an integer such that the sum of the cubes of its digits is equal to the number itself. For example, 371 is an Armstrong number since 3**3 + 7**3 + 1**3 = 371.

### Is 7 a narcissistic number?

The smallest numbers which are sums of any single positive power of their digits are 1, 2, 3, 4, 5, 6, 7, 8, 9, 153, 370, 371, 407, 1634, 4150, 4151, 8208, 9474, Narcissistic Number.

base-10 -narcissistic numbers

4

1634, 8208, 9474

5

54748, 92727, 93084

6

548834

7

1741725, 4210818, 9800817, 9926315

### What is Krishnamurthy number?

A Krishnamurthy number is a number whose sum of the factorial of digits is equal to the number itself. For example, 145, sum of factorial of each digits: 1! + 4!

## Conclusion :

Reverse a number can be a powerful tool for programming and data science. By reversing a number in algorithms, you can improve your code correctness and performance. Reverse a number in data science can help you understand complex data better. Finally, reverse a number in spreadsheets can help you create tables quickly and efficiently.