Sum Zeros and Ones
  • Think of all of the possible different seven-digit numbers of the form 1abcdef, such that the digits a, b, c, d, e, and f must either be 0 or 1. Your task is to determine the sum of all such seven-digit numbers of this form.

Answer:    
  Please enter a numerical answer
(ex. 1000 or 2.033) and click GO.		    

Contest problems and answers provided by:

David Rock
rock_david@colstate.edu
Columbus State University

Doug Brumbaugh
brumbad@pegasus.cc.ucf.edu
University of Central Florida