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5687847161 = 40829139309
BaseRepresentation
bin1010100110000010…
…11010100011111001
3112200101200120110222
411103001122203321
543122042102121
62340222145425
7260643621533
oct52301324371
915611616428
105687847161
112459706837
121128a22275
136c8504549
143bd594853
152345280ab
hex15305a8f9

5687847161 has 4 divisors (see below), whose sum is σ = 5688027300. Its totient is φ = 5687667024.

The previous prime is 5687847101. The next prime is 5687847173. The reversal of 5687847161 is 1617487865.

5687847161 is digitally balanced in base 3, 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 5378755600 + 309091561 = 73340^2 + 17581^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5687847161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5687847101) 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, 28826 + ... + 110483.

It is an arithmetic number, because the mean of its divisors is an integer number (1422006825).

Almost surely, 25687847161 is an apocalyptic number.

It is an amenable number.

5687847161 is a deficient number, since it is larger than the sum of its proper divisors (180139).

5687847161 is a wasteful number, since it uses less digits than its factorization.

5687847161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180138.

The product of its digits is 2257920, while the sum is 53.

The square root of 5687847161 is about 75417.8172648877. The cubic root of 5687847161 is about 1785.0455633111.

The spelling of 5687847161 in words is "five billion, six hundred eighty-seven million, eight hundred forty-seven thousand, one hundred sixty-one".

Divisors: 1 40829 139309 5687847161