135000

135000 is a natural number that comes after 134999 and before 135001. It is an even, composite number with a prime factorization of 2^3 × 3^3 × 5^4, meaning it is divisible by 8, 27, and 625. As a result, it ends with three zeros in decimal notation and is a multiple of 1000.

The number has 80 positive divisors, since the divisor count for 2^3 × 3^3 × 5^4 is (3+1)(3+1)(4+1) = 4×4×5 = 80. The sum of its divisors (including itself) is 468,600, computed as (2^4−1)/(2−1) × (3^4−1)/(3−1) × (5^5−1)/(5−1) = 15 × 40 × 781. Consequently, the sum of its proper divisors is 333,600, which makes 135000 an abundant number, since this sum exceeds 135000.

In scientific notation, 135000 is 1.35 × 10^5. The number is also a multiple of several smaller integers, reflecting its factorization: for example, it is divisible by 9, 27, 125, and 8. These properties place 135000 among common examples used in number theory to illustrate concepts such as prime factorization, divisor counting, and abundance.