Write a Python program to show the use of the isdigit() function to check  if all the characters in the text are digits

Write a python function that takes two very large integers as input and returns their sum. You can only use plain Python and no Bignum data types.

Write a python program that uses a for loop and the range function to generate a table of areas and circumferences of 10 circles with radii from 10 to 100 in increments of 10. The radii should display centered in a column 10 characters wide with 1 decimal place. The areas should be centered in a column 14 characters wide with 4 decimals and the circumferences should be centered in a column 18 characters wide with 3 decimals.

Write a program using function to check if the number is even or odd?Write a program to return the product of digits of given number.Write a program to find the sum of given 2 numbers.Write a program to find the max of two given numbers.