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8683644164 = 2213197847681
BaseRepresentation
bin10000001011001010…
…11110010100000100
3211102011210211101112
420011211132110010
5120241003103124
63553400344152
7425121520556
oct100545362404
924364724345
108683644164
113756766428
121824175058
13a850769b0
145c53c54d6
1535c53b90e
hex20595e504

8683644164 has 24 divisors (see below), whose sum is σ = 16448421528. Its totient is φ = 3987486720.

The previous prime is 8683644163. The next prime is 8683644187. The reversal of 8683644164 is 4614463868.

It can be written as a sum of positive squares in 4 ways, for example, as 3388171264 + 5295472900 = 58208^2 + 72770^2 .

It is not an unprimeable number, because it can be changed into a prime (8683644163) 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 7 ways as a sum of consecutive naturals, for example, 413597 + ... + 434084.

It is an arithmetic number, because the mean of its divisors is an integer number (685350897).

Almost surely, 28683644164 is an apocalyptic number.

It is an amenable number.

8683644164 is a deficient number, since it is larger than the sum of its proper divisors (7764777364).

8683644164 is a wasteful number, since it uses less digits than its factorization.

8683644164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847895 (or 847893 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 50.

The square root of 8683644164 is about 93186.0728006069. The cubic root of 8683644164 is about 2055.4204489352.

The spelling of 8683644164 in words is "eight billion, six hundred eighty-three million, six hundred forty-four thousand, one hundred sixty-four".

Divisors: 1 2 4 13 26 52 197 394 788 2561 5122 10244 847681 1695362 3390724 11019853 22039706 44079412 166993157 333986314 667972628 2170911041 4341822082 8683644164