Python Program - Convert Decimal to Binary, Octal and Hexadecimal

here's a Python program that converts a decimal number to its binary, octal, and hexadecimal representations:

# get input from user
dec = int(input("Enter a decimal number: "))

# convert to binary, octal, and hexadecimal
binary = bin(dec)
octal = oct(dec)
hexadecimal = hex(dec)

# print the results
print("The binary representation is:", binary)
print("The octal representation is:", octal)
print("The hexadecimal representation is:", hexadecimal)

In this program, we first use the input() function to get input from the user, and store it in the variable dec. We assume that the user enters a valid decimal number, and we convert it to an integer using the int() function.

We then use the built-in bin(), oct(), and hex() functions to convert the decimal number to its binary, octal, and hexadecimal representations, respectively.

Finally, we use the print() function to print out the results. Note that the bin(), oct(), and hex() functions return their results as strings that start with a prefix indicating the base of the number (0b for binary, 0o for octal, and 0x for hexadecimal).