Page 425 - Computer Science Class 11 With Functions
P. 425
Program 5
Write a function perfectNumber(number) that takes an integer argument number as an input and checks
whether the number is a perfect square or not. In number theory, a perfect number is a positive integer that is
equal to the sum of its positive divisors, excluding the number itself. Invoke the function to print an appropriate
message for the user-entered number.
Ans. def perfectNumber(number):
'''
Objective : To check whether a number is perfect number
Input Parameter : number - numeric value
Return Value : 1 - if number is perfect, 0 otherwise
'''
sum = 0
for i in range(1, number):
if(number % i == 0):
sum = sum + i
if (sum == number):
return 1
else:
return 0
number = int(input("Please enter any Number: "))
result = perfectNumber(number)
if result == 1:
print(number, 'is a perfect number')
else:
print(number, 'is not a perfect number')
Program 6
Write a function armstrongNumber(num) that takes num as an input and checks whether the num is an
armstrong number or not. The Armstrong number is a number that is equal to the sum of the cubes of its digits.
For example, 0, 1, 153, 370, 371, and 407 are the Armstrong numbers. Invoke the function to print an appropriate
message for the user-entered number.
Ans. def armstrongNumber(num):
'''
Objective : To check whether a number is an armstrong number
Input Parameter : num - numeric value
Return Value : 1 - if number is armstrong, 0 otherwise
'''
n = num #storing the number for later usage
sumCubeDigits = 0
while n > 0:
sumCubeDigits += (n % 10) * (n % 10) * (n % 10)
Practical 423

