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386985 = 3525799
BaseRepresentation
bin1011110011110101001
3201122211210
41132132221
544340420
612143333
73201144
oct1363651
9648753
10386985
11244825
12167b49
131071b1
14a105b
15799e0
hex5e7a9

386985 has 8 divisors (see below), whose sum is σ = 619200. Its totient is φ = 206384.

The previous prime is 386977. The next prime is 386987. The reversal of 386985 is 589683.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 386985 - 23 = 386977 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 386985.

It is not an unprimeable number, because it can be changed into a prime (386987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12885 + ... + 12914.

It is an arithmetic number, because the mean of its divisors is an integer number (77400).

2386985 is an apocalyptic number.

It is an amenable number.

386985 is a deficient number, since it is larger than the sum of its proper divisors (232215).

386985 is a wasteful number, since it uses less digits than its factorization.

386985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25807.

The product of its digits is 51840, while the sum is 39.

The square root of 386985 is about 622.0811844125. The cubic root of 386985 is about 72.8726747795.

The spelling of 386985 in words is "three hundred eighty-six thousand, nine hundred eighty-five".

Divisors: 1 3 5 15 25799 77397 128995 386985