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90162053 = 670313451
BaseRepresentation
bin1010101111111…
…00001110000101
320021122201002022
411113330032011
5141040141203
612540252525
72143236062
oct527741605
9207581068
1090162053
11469920a3
1226241145
13158aa937
14bd8dc69
157daea38
hex55fc385

90162053 has 4 divisors (see below), whose sum is σ = 90182208. Its totient is φ = 90141900.

The previous prime is 90162019. The next prime is 90162071. The reversal of 90162053 is 35026109.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90162053 - 212 = 90157957 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 (90152053) 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, 23 + ... + 13428.

It is an arithmetic number, because the mean of its divisors is an integer number (22545552).

Almost surely, 290162053 is an apocalyptic number.

It is an amenable number.

90162053 is a deficient number, since it is larger than the sum of its proper divisors (20155).

90162053 is a wasteful number, since it uses less digits than its factorization.

90162053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20154.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 90162053 is about 9495.3700823085. The cubic root of 90162053 is about 448.4092856340.

The spelling of 90162053 in words is "ninety million, one hundred sixty-two thousand, fifty-three".

Divisors: 1 6703 13451 90162053