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.
If you use an average of 80 beats per minute, your heart beats about 4,800 times per hour. That's a whopping 115,200 times per day. Over the course of a year, your heart would beat about 42,048,000 times! If you live to be 80 years old, your heart would have beaten approximately 3,363,840,000 times! That's over 3 billion heartbeats! What a muscle!