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90164682 = 2325009149
BaseRepresentation
bin1010101111111…
…00110111001010
320021122211200200
411113330313022
5141040232212
612540313030
72143246536
oct527746712
9207584620
1090164682
1146994073
1226242776
13158abbaa
14bd90bc6
157db06dc
hex55fcdca

90164682 has 12 divisors (see below), whose sum is σ = 195356850. Its totient is φ = 30054888.

The previous prime is 90164663. The next prime is 90164689. The reversal of 90164682 is 28646109.

90164682 is a `hidden beast` number, since 9 + 0 + 1 + 646 + 8 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 49829481 + 40335201 = 7059^2 + 6351^2 .

It is a super-2 number, since 2×901646822 = 16259339760322248, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (90164689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2504557 + ... + 2504592.

Almost surely, 290164682 is an apocalyptic number.

90164682 is an abundant number, since it is smaller than the sum of its proper divisors (105192168).

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

90164682 is a wasteful number, since it uses less digits than its factorization.

90164682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5009157 (or 5009154 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 90164682 is about 9495.5085171885. The cubic root of 90164682 is about 448.4136439219.

The spelling of 90164682 in words is "ninety million, one hundred sixty-four thousand, six hundred eighty-two".

Divisors: 1 2 3 6 9 18 5009149 10018298 15027447 30054894 45082341 90164682