190640

190640 is a natural number that lies between 190639 and 190641. It is an even, composite integer.

Its prime factorization is 190640 = 2^4 × 5 × 2383, where 2383 is a prime number. From this factorization, the number has 20 positive divisors, formed by the combinations of 2^a (a = 0–4), 5^b (b = 0–1), and 2383^c (c = 0–1).

Notable divisibility properties include being divisible by 16 and by 20, and consequently by 80 as well. It is also divisible by 2383, reflecting its prime factor. The complete set of positive divisors is: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2383, 4766, 9532, 11915, 19064, 23830, 38128, 47660, 95320, and 190640.

In addition to its divisibility characteristics, 190640 has the decimal digit sum of 20, making it a Harshad (Niven) number in base 10 since 190640 ÷ 20 = 9532. The number is not a prime, nor a power, and it is not a perfect square.

Usage and context: as a plain integer, 190640 commonly appears in discussions of factorization, divisibility, and number-theory examples. In decimal representation, its factorization provides quick checks for divisibility by small primes and helps illustrate divisor-counting concepts.

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