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22163189 = 174330319
BaseRepresentation
bin101010010001…
…0111011110101
31112201000011212
41110202323311
521133210224
62111011205
7356245466
oct124427365
945630155
1022163189
1111568594
127509b05
13478cc19
142d2cd6d
151e2bd0e
hex1522ef5

22163189 has 8 divisors (see below), whose sum is σ = 24013440. Its totient is φ = 20373696.

The previous prime is 22163161. The next prime is 22163201. The reversal of 22163189 is 98136122.

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 22163189 - 216 = 22097653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22163149) 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, 14429 + ... + 15890.

It is an arithmetic number, because the mean of its divisors is an integer number (3001680).

Almost surely, 222163189 is an apocalyptic number.

It is an amenable number.

22163189 is a deficient number, since it is larger than the sum of its proper divisors (1850251).

22163189 is a wasteful number, since it uses less digits than its factorization.

22163189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30379.

The product of its digits is 5184, while the sum is 32.

The square root of 22163189 is about 4707.7796252586. The cubic root of 22163189 is about 280.8950482543.

The spelling of 22163189 in words is "twenty-two million, one hundred sixty-three thousand, one hundred eighty-nine".

Divisors: 1 17 43 731 30319 515423 1303717 22163189