While the decimal numbering system allows any digit in a number to have any of ten values (0-9), digits in hexadecimal numbers can have 16 (0-F), digits in octal numbers only eight (0-7) and ...

The octal number 40,000 corresponds to a decimal number of 16,384, and the DJIA closed at 16479.88 on December 26. The population of New York City, according to the 2010 census , was 8,175,133.

Log out of Google and search for [binary], [octal] and [hexadecimal] and you will see a little geeky easter egg. The easter egg shows the value of the results in that number systems.