800000001

800000001 is a large integer. It is an odd number, as its last digit is 1. It is divisible by 3, as the sum of its digits (8 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 1 = 9) is divisible by 3. It is also divisible by 9, for the same reason. In terms of prime factorization, 800000001 is equal to 3^2 * 88888889. The number 88888889 is a prime number. As a numeral, 800000001 is read as eight hundred million and one. In scientific notation, it can be expressed as approximately 8.00000001 x 10^8. It is a positive integer.