11000

11000 is the natural number that follows 10999 and precedes 11001. In mathematics, it is an even composite number with prime factorization 2^3 × 5^3 × 11, i.e., 11000 = 11 × 1000.

As a decimal, its digit sum is 1+1+0+0+0 = 2, making 11000 a Harshad number in base 10, since it is divisible by 2. It has 32 positive divisors. It factors as 2^3 × 5^3 × 11, so it is divisible by 8, by 125, by 11, and by any product of these factors (for example 8×11 = 88, 125×11 = 1375, and 8×125 = 1000).

Representations beyond decimal include binary, hexadecimal, and octal: 11000 in binary is 10101011111000_2; in hexadecimal it is 0x2AF8; in octal it is 0o25370.

Because it equals 11 × 1000, 11000 is divisible by common round-number factors such as 8, 11, 25, and 40, illustrating its compatibility with simple divisors derived from its prime components.

In practical contexts, 11,000 often serves as a round figure in statistics, budgeting, or population estimates. There is no widely noted mathematical constant or historical year specifically associated with 11000.