=> "1001000111010100011111111000011"
>> 149569475.to_s(2)
=> "1000111010100011111111000011"
>> Time.at 1223311299
=> Mon Oct 06 09:41:39 -0700 2008
>> Time.at 149569475
=> Fri Sep 27 20:04:35 -0700 1974