10000001
Yup! The lowest digit is the 1's digit; in every even number it's a 0 and in ever odd number it's a 1.
Every number after the 1's digit is twice as much as the previous one.
So it goes 1,2,4,8,16,32,64,128... and for any digit that has a 1 instead of a zero, you take that number and add it together with all the other ones.
So 11010100101 is 1,701 for example. 