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8027644811 = 28128568131
BaseRepresentation
bin1110111100111110…
…00010001110001011
3202201110102121110012
413132133002032023
5112420034113221
63404324142135
7402634566164
oct73637021613
922643377405
108027644811
11344a43a3aa
12168053794b
139ac1a20b4
1456222276b
1531eb5b65b
hex1de7c238b

8027644811 has 4 divisors (see below), whose sum is σ = 8056213224. Its totient is φ = 7999076400.

The previous prime is 8027644789. The next prime is 8027644819. The reversal of 8027644811 is 1184467208.

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 8027644811 - 26 = 8027644747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8027644819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14283785 + ... + 14284346.

It is an arithmetic number, because the mean of its divisors is an integer number (2014053306).

Almost surely, 28027644811 is an apocalyptic number.

8027644811 is a deficient number, since it is larger than the sum of its proper divisors (28568413).

8027644811 is a wasteful number, since it uses less digits than its factorization.

8027644811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28568412.

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 8027644811 is about 89597.1250152593. The cubic root of 8027644811 is about 2002.3010857369.

The spelling of 8027644811 in words is "eight billion, twenty-seven million, six hundred forty-four thousand, eight hundred eleven".

Divisors: 1 281 28568131 8027644811