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8684492123 = 13166293833
BaseRepresentation
bin10000001011010001…
…01101010101011011
3211102020101220120102
420011220231111123
5120241212221443
63553430450015
7425131652006
oct100550552533
924366356512
108684492123
11375719551a
12182450390b
13a852b2948
145c556653d
1535c657cb8
hex205a2d55b

8684492123 has 4 divisors (see below), whose sum is σ = 8750786088. Its totient is φ = 8618198160.

The previous prime is 8684492083. The next prime is 8684492129. The reversal of 8684492123 is 3212944868.

8684492123 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 is a cyclic number.

It is not a de Polignac number, because 8684492123 - 28 = 8684491867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8684492129) 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, 33146786 + ... + 33147047.

It is an arithmetic number, because the mean of its divisors is an integer number (2187696522).

Almost surely, 28684492123 is an apocalyptic number.

8684492123 is a deficient number, since it is larger than the sum of its proper divisors (66293965).

8684492123 is a wasteful number, since it uses less digits than its factorization.

8684492123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66293964.

The product of its digits is 663552, while the sum is 47.

The square root of 8684492123 is about 93190.6225057006. The cubic root of 8684492123 is about 2055.4873507837.

The spelling of 8684492123 in words is "eight billion, six hundred eighty-four million, four hundred ninety-two thousand, one hundred twenty-three".

Divisors: 1 131 66293833 8684492123