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8728161041 = 15157802391
BaseRepresentation
bin10000010000011110…
…10010101100010001
3211112021120112001202
420020033102230101
5120333402123131
64002030440545
7426202100435
oct101017225421
924467515052
108728161041
113779901636
121837063155
13a91362442
145cb2929c5
153613d1bcb
hex2083d2b11

8728161041 has 4 divisors (see below), whose sum is σ = 8785963584. Its totient is φ = 8670358500.

The previous prime is 8728161037. The next prime is 8728161083. The reversal of 8728161041 is 1401618278.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8728161041 - 22 = 8728161037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8728160986 and 8728161004.

It is not an unprimeable number, because it can be changed into a prime (8728164041) 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, 28901045 + ... + 28901346.

It is an arithmetic number, because the mean of its divisors is an integer number (2196490896).

Almost surely, 28728161041 is an apocalyptic number.

It is an amenable number.

8728161041 is a deficient number, since it is larger than the sum of its proper divisors (57802543).

8728161041 is a wasteful number, since it uses less digits than its factorization.

8728161041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57802542.

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 8728161041 is about 93424.6275935848. The cubic root of 8728161041 is about 2058.9268486674.

The spelling of 8728161041 in words is "eight billion, seven hundred twenty-eight million, one hundred sixty-one thousand, forty-one".

Divisors: 1 151 57802391 8728161041