128000

128,000 is a natural number that follows 127,999 and precedes 128,001. In decimal notation it is written as 128,000, and in scientific notation it is 1.28 × 10^5.

Mathematically, 128,000 has the prime factorization 2^10 × 5^3. This makes the number divisible by many powers of two and by 5^3, and it is also divisible by 1000 (since 2^3 × 5^3 = 1000). It is an even number and ends with three zeros. The count of its positive divisors is (10 + 1)(3 + 1) = 44. The sum of its divisors is 319,332.

In common base representations, 128,000 equals 0x01F400 in hexadecimal, and in binary it is 00000001 11110100 00000000 (24 bits). It can also be expressed as 1.28 × 10^5 in scientific notation.

In computing and data contexts, 128,000 bytes is closely related to 125 KiB, since 1 KiB equals 1024 bytes and 125 × 1024 = 128,000. This makes 128,000 a convenient decimal quantity that aligns with a power-of-two boundary when interpreted as a byte count. As a round, highly composite number with a simple factorization, 128,000 often appears in discussions of data sizes, storage planning, and numerical properties.