FedEx Ground and Express tracking numbers can be between 12 and 14 digits. Prior to January 2013, Ground tracking numbers were up to 15 digits and Express numbers were up to 12 digits.
The average heart beats 80-100 beats per minute at rest. Therefore in a year it would be 42,048,000 - 52,560,000 just at rest. That amount would be increased depending on the amount of exercise that person does. The average heart beats 80-100 beats per minute at rest. Therefore in a year it would be 42,048,000 - 52,560,000 just at rest.
Take your pulse a couple of times to establish an average number of beats per minute for your heartbeat. Then calculate the number of minutes you've been alive so far and multiply it by your average heart rate. Your number won't be exact, of course, but you'll have a rough estimate of about how many times your heart has beat so far in your life.