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5188844161 = 73401177257
BaseRepresentation
bin1001101010100011…
…10111101010000001
3111101121201121001101
410311101313222001
541111321003121
62214514534401
7242404306354
oct46521675201
914347647041
105188844161
112222a70466
121009897401
1364900b1b7
143731bc29b
1520580a491
hex135477a81

5188844161 has 8 divisors (see below), whose sum is σ = 5273070984. Its totient is φ = 5104972800.

The previous prime is 5188844123. The next prime is 5188844203. The reversal of 5188844161 is 1614488815.

It can be written as a sum of positive squares in 4 ways, for example, as 4332930625 + 855913536 = 65825^2 + 29256^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5188844161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5188814161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59356 + ... + 117901.

It is an arithmetic number, because the mean of its divisors is an integer number (659133873).

Almost surely, 25188844161 is an apocalyptic number.

It is an amenable number.

5188844161 is a deficient number, since it is larger than the sum of its proper divisors (84226823).

5188844161 is a wasteful number, since it uses less digits than its factorization.

5188844161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177731.

The product of its digits is 245760, while the sum is 46.

The square root of 5188844161 is about 72033.6321519330. The cubic root of 5188844161 is about 1731.2383974929.

The spelling of 5188844161 in words is "five billion, one hundred eighty-eight million, eight hundred forty-four thousand, one hundred sixty-one".

Divisors: 1 73 401 29273 177257 12939761 71080057 5188844161