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36168161 = 169721313
BaseRepresentation
bin1000100111111…
…0000111100001
32112001112101112
42021332013201
533224340121
63331113105
7616265351
oct211760741
975045345
1036168161
1119463747
1210142795
1376546a3
144b36b61
15329675b
hex227e1e1

36168161 has 4 divisors (see below), whose sum is σ = 36191172. Its totient is φ = 36145152.

The previous prime is 36168151. The next prime is 36168193. The reversal of 36168161 is 16186163.

36168161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24196561 + 11971600 = 4919^2 + 3460^2 .

It is a cyclic number.

It is not a de Polignac number, because 36168161 - 210 = 36167137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (36168131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8960 + ... + 12353.

It is an arithmetic number, because the mean of its divisors is an integer number (9047793).

Almost surely, 236168161 is an apocalyptic number.

It is an amenable number.

36168161 is a deficient number, since it is larger than the sum of its proper divisors (23011).

36168161 is a wasteful number, since it uses less digits than its factorization.

36168161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23010.

The product of its digits is 5184, while the sum is 32.

The square root of 36168161 is about 6013.9970901223. The cubic root of 36168161 is about 330.7060518028.

The spelling of 36168161 in words is "thirty-six million, one hundred sixty-eight thousand, one hundred sixty-one".

Divisors: 1 1697 21313 36168161