810000

810000 is the six-digit positive integer. In decimal notation it is written as 810,000 and in scientific notation as 8.1 × 10^5. It can also be expressed as 81 × 10,000, or as 30^4, and it equals 900^2.

Mathematical properties: The prime factorization of 810000 is 2^4 × 3^4 × 5^4. Consequently, it is a perfect fourth power (30^4) and a perfect square (900^2). The number has (4+1)^3 = 125 positive divisors. The sum of all positive divisors, sigma(810000), equals 2,929,531. Its digits sum to 9, giving a digital root of 9; the number is divisible by 9 and by 10,000.

Context and usage: As a numeric example, 810000 illustrates a value with a simple prime factorization that yields many divisors and a high power structure. In practical datasets, it may appear as a count, budget amount, or parameter, with the exact interpretation depending on the field. Its trailing four zeros reflect divisibility by 10,000 and a factorization that includes both 2^4 and 5^4.