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22657068 = 2232789909
BaseRepresentation
bin101011001101…
…1100000101100
31120122002122200
41112123200230
521300011233
62125341500
7363403410
oct126334054
946562580
1022657068
1111875655
127707890
134903965
14301ad40
151ec8313
hex159b82c

22657068 has 36 divisors (see below), whose sum is σ = 65454480. Its totient is φ = 6473376.

The previous prime is 22657049. The next prime is 22657069. The reversal of 22657068 is 86075622.

22657068 is a `hidden beast` number, since 2 + 26 + 570 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22657069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44703 + ... + 45206.

It is an arithmetic number, because the mean of its divisors is an integer number (1818180).

Almost surely, 222657068 is an apocalyptic number.

22657068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22657068 is an abundant number, since it is smaller than the sum of its proper divisors (42797412).

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

22657068 is a wasteful number, since it uses less digits than its factorization.

22657068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89926 (or 89921 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 22657068 is about 4759.9441173190. The cubic root of 22657068 is about 282.9662043908.

The spelling of 22657068 in words is "twenty-two million, six hundred fifty-seven thousand, sixty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 89909 179818 269727 359636 539454 629363 809181 1078908 1258726 1618362 1888089 2517452 3236724 3776178 5664267 7552356 11328534 22657068