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13161163 = 79166597
BaseRepresentation
bin110010001101…
…001011001011
3220202122201111
4302031023023
511332124123
61150031151
7216603511
oct62151313
926678644
1013161163
11747a1a4
1244a84b7
13295a692
141a684b1
15124e90d
hexc8d2cb

13161163 has 4 divisors (see below), whose sum is σ = 13327840. Its totient is φ = 12994488.

The previous prime is 13161151. The next prime is 13161173. The reversal of 13161163 is 36116131.

It is a happy number.

13161163 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 is a cyclic number.

It is not a de Polignac number, because 13161163 - 25 = 13161131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13161133) 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, 83220 + ... + 83377.

It is an arithmetic number, because the mean of its divisors is an integer number (3331960).

Almost surely, 213161163 is an apocalyptic number.

13161163 is a deficient number, since it is larger than the sum of its proper divisors (166677).

13161163 is an equidigital number, since it uses as much as digits as its factorization.

13161163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166676.

The product of its digits is 324, while the sum is 22.

The square root of 13161163 is about 3627.8317215659. The cubic root of 13161163 is about 236.1011428482.

Adding to 13161163 its reverse (36116131), we get a palindrome (49277294).

The spelling of 13161163 in words is "thirteen million, one hundred sixty-one thousand, one hundred sixty-three".

Divisors: 1 79 166597 13161163