# Python Program for Neon Number

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Given a number, the task is to check whether the given number is a Neon Number or not in Python.

Neon Number:

A Neon Number is a number whose square sum of digits equals the original number.

Ex: 9

Square of 9 =81

Sum of digits of square = 8 +1 =9 ,So it is Neon Number

Examples:

Example1:

Input:

Given Number = 9

Output:

The Given Number [ 9 ] is a neon Number

Example2:

Input:

Given Number =123

Output:

The Given Number [ 123 ] is not a neon Number

## Program for Neon Number in Python

Below are the ways to check whether the given number is a Neon Number or Not.

### Method #1: Using list() and sum() functions (Static Input)

Approach:

• Give the number as static input and store it in a variable.
• Calculate the square of the given number using the ** operator or multiply the given number by itself and store it in a variable.
• Convert this squared number into a list of digits using list(),int(),map(),str() functions.
• Store this list in a variable.
• Calculate the sum of digits of this list using the sum() function.
• Check if this sum is equal to the given number or not using the If conditional statement.
• If it is true then the given number is a Neon Number.
• Else the given number is not a Neon Number.
• The Exit of the Program.

Below is the implementation:

#Give the number as static input and store it in a variable.
givnumb=9
#Calculate the square of the given number using the ** operator
#or multiply the given number by itself and store it in a variable.
squarnumb=givnumb**2
#Convert this squared number into a list of digits
#using list(),int(),map(),str() functions.
#Store this list in a variable.
numbedigit=list(map(int,str(givnumb)))
#Calculate the sum of digits of this list using the sum() function.
sumdigi=sum(numbedigit)
#Check if this sum is equal to the given number
#or not using the If conditional statement.
#If it is true then the given number is a Neon Number.
if(sumdigi==givnumb):
print('The Given Number [',givnumb,'] is a neon Number')
#Else the given number is not a Neon Number.
else:
print('The Given Number [',givnumb,'] is not a neon Number')


Output:

The Given Number [ 9 ] is a neon Number

### Method #2: Using list() and sum() functions (User Input)

Approach:

• Give the number as user input using the int(input()) function and store it in a variable.
• Calculate the square of the given number using the ** operator or multiply the given number by itself and store it in a variable.
• Convert this squared number into a list of digits using list(),int(),map(),str() functions.
• Store this list in a variable.
• Calculate the sum of digits of this list using the sum() function.
• Check if this sum is equal to the given number or not using the If conditional statement.
• If it is true then the given number is a Neon Number.
• Else the given number is not a Neon Number.
• The Exit of the Program.

Below is the implementation:

# Give the number as user input using int(input()) function and store it in a variable
givnumb = int(input('Enter some random number ='))
# Calculate the square of the given number using the ** operator
# or multiply the given number by itself and store it in a variable.
squarnumb = givnumb**2
# Convert this squared number into a list of digits
# using list(),int(),map(),str() functions.
# Store this list in a variable.
numbedigit = list(map(int, str(givnumb)))
# Calculate the sum of digits of this list using the sum() function.
sumdigi = sum(numbedigit)
# Check if this sum is equal to the given number
# or not using the If conditional statement.
# If it is true then the given number is a Neon Number.
if(sumdigi == givnumb):
print('The Given Number [', givnumb, '] is a neon Number')
# Else the given number is not a Neon Number.
else:
print('The Given Number [', givnumb, '] is not a neon Number')


Output:

Enter some random number =123
The Given Number [ 123 ] is not a neon Number

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