What is the binary representation of 73?
1001001
Let's verify our binary number 1001001 by converting it back to decimal: 1001001_2 = (1 × 2^6) + (0 × 2^5) + (0 × 2^4) + (1 × 2^3) + (0 × 2^2) + (0 × 2^1) + (1 × 2^0)
If 1 is added to each odd digit and 2 is subtracted from each even digit in the number 8317456, what will be the sum of the digits that are second from the left and second from the right?