2,001,000.
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Answer is 4000000: The sum of the first N odd numbers is N^2. Look at 1,3,5 for example. There are 3 numbers and the sum is 9 which is 3^2. Add 7 and the sum is 16 which is 4^2. So the of the first 2000 consecutive odd numbers is 2000^2 Note 2000 is 2(10^3). When we square that it is 4x10^6=4000000
The sum of the first 40 whole numbers is 780.
The sum of the first 1,000 odd numbers is 1,000,000.
The sum of the first 10,000 even numbers is 100,010,000.
The sum of the first 13 odd numbers is 169.