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8916640850 = 2521313717909
BaseRepresentation
bin10000100110111100…
…10010010001010010
3212000102020021202102
420103132102101102
5121230130001400
64032442320402
7433651124315
oct102336222122
925012207672
108916640850
113866236277
12188a1b9102
13ac1414c60
1460831697c
15372c129d5
hex213792452

8916640850 has 24 divisors (see below), whose sum is σ = 17860718820. Its totient is φ = 3292297920.

The previous prime is 8916640819. The next prime is 8916640867. The reversal of 8916640850 is 580466198.

It can be written as a sum of positive squares in 6 ways, for example, as 86843761 + 8829797089 = 9319^2 + 93967^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8916640795 and 8916640804.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6858305 + ... + 6859604.

Almost surely, 28916640850 is an apocalyptic number.

8916640850 is an abundant number, since it is smaller than the sum of its proper divisors (8944077970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8916640850 is a wasteful number, since it uses less digits than its factorization.

8916640850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13717934 (or 13717929 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 8916640850 is about 94427.9664612132. The cubic root of 8916640850 is about 2073.6418925450.

The spelling of 8916640850 in words is "eight billion, nine hundred sixteen million, six hundred forty thousand, eight hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 325 650 13717909 27435818 68589545 137179090 178332817 342947725 356665634 685895450 891664085 1783328170 4458320425 8916640850