Python Program to Print all Disarium Numbers within Given range

In the previous article, we have discussed Python Program to Get Tangent value Using math.tan()
Disarium Number:

A Disarium number is one in which the sum of each digit raised to the power of its respective position equals the original number.

like 135 , 89, etc.

Here 1^1 + 3^2 + 5^3 = 135 so it is disarium Number

Examples:

Example1:

Input:

Given lower limit range = 7
Given upper limit range = 180

Output:

The disarium numbers in the given range 7 and 180 are: 
7 8 9 89 135 175

Example 2:

Input:

Given lower limit range = 1
Given upper limit range = 250

Output:

The disarium numbers in the given range 1 and 250 are:
1 2 3 4 5 6 7 8 9 89 135 175

Program to Print all Disarium Numbers within Given range

Below are the ways to Print all Disarium Numbers within the given range.

Using For Loop (Static Input)
Using For Loop (User Input)

Method #1: Using For Loop (Static input)

Approach:

Give the lower limit range as static input and store it in a variable.
Give the upper limit range as static input and store it in another variable.
Loop from lower limit range to upper limit range using For loop.
Inside the for loop take a variable say ‘num’ and initialize its value to the iterator value.
Make a copy of the number so you can verify the outcome later.
Make a result variable (with a value of 0) and an iterator ( set to the size of the number)
Create a while loop to go digit by digit through the number.
On each iteration, multiply the result by a digit raised to the power of the iterator value.
On each traversal, increment the iterator.
Compare the result value to a copy of the original number.
Print if the given number is a disarium number.
The Exit of the program.

Below is the implementation:

# Give the lower limit range as static input and store it in a variable.
lowlim_range = 7
# Give the upper limit range as static input and store it in another variable.
upplim_range = 180
print('The disarium numbers in the given range',
      lowlim_range, 'and', upplim_range, 'are:')
# Loop from lower limit range to upper limit range using For loop.
for m in range(lowlim_range, upplim_range+1):

    # given number
    num = m
    # intialize result to zero(ans)
    ans = 0

    # calculating the digits
    digit_s = len(str(num))
    # copy the number in another variable(duplicate)
    dup_numbr = num
    while (dup_numbr != 0):
        # getting the last digit
        remaindr = dup_numbr % 10
        # multiply the result by a digit raised to the power of the iterator value.
        ans = ans + remaindr**digit_s
        digit_s = digit_s - 1
        dup_numbr = dup_numbr//10
    # It is disarium number if it is equal to original number
    if(num == ans):
        print(num, end=' ')

Output:

The disarium numbers in the given range 7 and 180 are:
7 8 9 89 135 175

Method #2: Using For Loop (User input)

Approach:

Give the lower limit range as user input using the int(input()) function and store it in a variable.
Give the upper limit range as user input using the int(input()) function and store it in another variable.
Loop from lower limit range to upper limit range using For loop.
Inside the for loop take a variable say ‘num’ and initialize it’s value to iterator value .
Make a copy of the number so you can verify the outcome later.
Make a result variable (with a value of 0) and an iterator ( set to the size of the number)
Create a while loop to go digit by digit through the number.
On each iteration, multiply the result by a digit raised to the power of the iterator value.
On each traversal, increment the iterator.
Compare the result value to a copy of the original number.
Print if the given number is a disarium number.
The Exit of the program.

Below is the implementation:

# Give the lower limit range as user input using the int(input()) function and store it in a variable.
lowlim_range = int(input("Enter some Random number = "))
# Give the upper limit range as user input using the int(input()) function and store it in another variable.
upplim_range = int(input("Enter some Random number = "))
print('The disarium numbers in the given range',
      lowlim_range, 'and', upplim_range, 'are:')
# Loop from lower limit range to upper limit range using For loop.
for m in range(lowlim_range, upplim_range+1):

    # given number
    num = m
    # intialize result to zero(ans)
    ans = 0

    # calculating the digits
    digit_s = len(str(num))
    # copy the number in another variable(duplicate)
    dup_numbr = num
    while (dup_numbr != 0):
        # getting the last digit
        remaindr = dup_numbr % 10
        # multiply the result by a digit raised to the power of the iterator value.
        ans = ans + remaindr**digit_s
        digit_s = digit_s - 1
        dup_numbr = dup_numbr//10
    # It is disarium number if it is equal to original number
    if(num == ans):
        print(num, end=' ')

Output:

Enter some Random number = 1
Enter some Random number = 250
The disarium numbers in the given range 1 and 250 are:
1 2 3 4 5 6 7 8 9 89 135 175

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