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27318160 = 245341477
BaseRepresentation
bin110100000110…
…1011110010000
31220101220110201
41220031132100
523443140120
62413304544
7451125532
oct150153620
956356421
1027318160
11144695a1
129195154
1358763bc
1438b1852
1525e940a
hex1a0d790

27318160 has 20 divisors (see below), whose sum is σ = 63514908. Its totient is φ = 10927232.

The previous prime is 27318127. The next prime is 27318163. The reversal of 27318160 is 6181372.

It can be written as a sum of positive squares in 2 ways, for example, as 4393216 + 22924944 = 2096^2 + 4788^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (27318163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170659 + ... + 170818.

Almost surely, 227318160 is an apocalyptic number.

27318160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27318160 is an abundant number, since it is smaller than the sum of its proper divisors (36196748).

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

27318160 is a wasteful number, since it uses less digits than its factorization.

27318160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341490 (or 341484 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 27318160 is about 5226.6777210767. The cubic root of 27318160 is about 301.1737719126.

The spelling of 27318160 in words is "twenty-seven million, three hundred eighteen thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 341477 682954 1365908 1707385 2731816 3414770 5463632 6829540 13659080 27318160