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389682 = 23221649
BaseRepresentation
bin1011111001000110010
3201210112200
41133020302
544432212
612204030
73212046
oct1371062
9653480
10389682
11246857
12169616
131084a7
14a2026
157a6dc
hex5f232

389682 has 12 divisors (see below), whose sum is σ = 844350. Its totient is φ = 129888.

The previous prime is 389663. The next prime is 389687. The reversal of 389682 is 286983.

389682 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 349281 + 40401 = 591^2 + 201^2 .

It is a super-2 number, since 2×3896822 = 303704122248, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 389682.

It is not an unprimeable number, because it can be changed into a prime (389687) by changing a digit.

389682 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10807 + ... + 10842.

2389682 is an apocalyptic number.

389682 is an abundant number, since it is smaller than the sum of its proper divisors (454668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389682 is a wasteful number, since it uses less digits than its factorization.

389682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21657 (or 21654 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 389682 is about 624.2451441541. The cubic root of 389682 is about 73.0415726174.

The spelling of 389682 in words is "three hundred eighty-nine thousand, six hundred eighty-two".

Divisors: 1 2 3 6 9 18 21649 43298 64947 129894 194841 389682