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BaseRepresentation
bin101110010011001010
3100122010210
4232103022
522032032
64021550
71416615
oct562312
9318123
10189642
1111a532
12918b6
136841b
144d17c
153b2cc
hex2e4ca

189642 has 8 divisors (see below), whose sum is σ = 379296. Its totient is φ = 63212.

The previous prime is 189619. The next prime is 189643. The reversal of 189642 is 246981.

189642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 189642.

It is not an unprimeable number, because it can be changed into a prime (189643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15798 + ... + 15809.

It is an arithmetic number, because the mean of its divisors is an integer number (47412).

2189642 is an apocalyptic number.

189642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

189642 is a wasteful number, since it uses less digits than its factorization.

189642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31612.

The product of its digits is 3456, while the sum is 30.

The square root of 189642 is about 435.4790465683. The cubic root of 189642 is about 57.4528409799.

The spelling of 189642 in words is "one hundred eighty-nine thousand, six hundred forty-two".

Divisors: 1 2 3 6 31607 63214 94821 189642