"The best number is 73. Seventy three is the twenty-first prime number. Its mirror, 37, is the twelfth and its mirror, 21, is the product of multiplying (hang on to your hats) 7 and 3. In binary, 73 is a palindrome: 1-0-0-1-0-0-1, which backwards is 1-0-0-1-0-0-1."
-- Dr. Sheldon Cooper, The Big Bang Theory, Season 4, Episode 10 (The Alien Parasite Hypothesis)
Happy Bithday Bernie!!!! Have a fantastic day and a fabulous year ahead! What an adorable picture of the two of you:)