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22733868 = 2231894489
BaseRepresentation
bin101011010111…
…0010000101100
31120210000000010
41112232100230
521304440433
62131133220
7364143333
oct126562054
946700003
1022733868
1111918323
127744210
13492c8c1
14303ad1a
151ee0e63
hex15ae42c

22733868 has 12 divisors (see below), whose sum is σ = 53045720. Its totient is φ = 7577952.

The previous prime is 22733863. The next prime is 22733869. The reversal of 22733868 is 86833722.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (22733863) 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, 947233 + ... + 947256.

Almost surely, 222733868 is an apocalyptic number.

It is an amenable number.

22733868 is an abundant number, since it is smaller than the sum of its proper divisors (30311852).

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

22733868 is a wasteful number, since it uses less digits than its factorization.

22733868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894496 (or 1894494 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 22733868 is about 4768.0046140917. The cubic root of 22733868 is about 283.2855645728.

The spelling of 22733868 in words is "twenty-two million, seven hundred thirty-three thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 1894489 3788978 5683467 7577956 11366934 22733868