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22530189 = 311682733
BaseRepresentation
bin101010111110…
…0100010001101
31120101122121110
41111330202031
521231431224
62122522233
7362334453
oct125744215
946348543
1022530189
11117992a0
127666379
13488ac96
142dc69d3
151ea0929
hex157c88d

22530189 has 8 divisors (see below), whose sum is σ = 32771232. Its totient is φ = 13654640.

The previous prime is 22530163. The next prime is 22530199. The reversal of 22530189 is 98103522.

It is a happy number.

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 22530189 - 215 = 22497421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22530139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341334 + ... + 341399.

It is an arithmetic number, because the mean of its divisors is an integer number (4096404).

Almost surely, 222530189 is an apocalyptic number.

It is an amenable number.

22530189 is a deficient number, since it is larger than the sum of its proper divisors (10241043).

22530189 is a wasteful number, since it uses less digits than its factorization.

22530189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682747.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 22530189 is about 4746.5976235615. The cubic root of 22530189 is about 282.4370141772.

The spelling of 22530189 in words is "twenty-two million, five hundred thirty thousand, one hundred eighty-nine".

Divisors: 1 3 11 33 682733 2048199 7510063 22530189