2000000

2000000, or two million, is the natural number following 1999999 and preceding 2000001. In decimal notation it is written as 2,000,000, a round number often used in statistics, finance, and population counts. It is an even and composite number.

Prime factorization and divisors: 2,000,000 = 2^7 × 5^6. This yields 56 positive divisors, since the number of divisors is (7+1)·(6+1) = 56. The sum of all divisors is (2^8−1)/(2−1) × (5^7−1)/(5−1) = 255 × 19,531 = 4,980,405. The sum of proper divisors is 4,980,405 − 2,000,000 = 2,980,405, which is greater than 2,000,000, making 2,000,000 an abundant number (abundance of 980,405).

Representations in other bases: in binary, 2,000,000 is 1111010000100100000000, with 1s at bit positions 20, 19, 18, 17, 15, 10, and 7. In hexadecimal, it is 0x1E8480. In octal, it is 7502200.

Context and usage: as a large, cleanly divisible number by powers of 2 and 5, 2,000,000 is frequently used as a milestone or benchmark in data sets, budgeting, and statistical reporting. Its factorization and base representations provide convenient cross-base references in mathematical and computational discussions.