27000

27000 is a natural number that comes after 26999 and before 27001. It is a perfect cube, equal to 30 cubed (30^3). Its prime factorization is 2^3 · 3^3 · 5^3, which also shows that 27000 = (2 · 3 · 5)^3 = 30^3. The number is divisible by 8, 27, and 125, and it is a multiple of 1000.

Because its prime exponent is 3 in each factor, 27000 has (3+1)^3 = 64 positive divisors. The sum of its digits is 9, so it is a Harshad number in base 10, meaning 27000 is divisible by the sum of its digits (27000/9 = 3000).

In decimal form it is written as 27000; in scientific notation as 2.7 × 10^4. In practical terms, 27000 seconds equals 7 hours 30 minutes; 27000 meters equals 27 kilometers. It is also equal to 30^3, so it arises in problems involving cubic volumes or counts of identical items arranged in a cube.

Historically 27000 is far in the future; it does not mark a known historical era. As a mathematical constant, it is sometimes used as an example when illustrating properties of cubes, prime factorization, and divisor counts.