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8026465780 = 225401323289
BaseRepresentation
bin1110111100110101…
…00010010111110100
3202201101012201010101
413132122202113310
5112414233401110
63404243003444
7402621555604
oct73632422764
922641181111
108026465780
1134498045a3
121680069584
139abb7b548
14561dd6c04
1531e9c713a
hex1de6a25f4

8026465780 has 12 divisors (see below), whose sum is σ = 16855578180. Its totient is φ = 3210586304.

The previous prime is 8026465763. The next prime is 8026465813. The reversal of 8026465780 is 875646208.

It can be written as a sum of positive squares in 2 ways, for example, as 1350268516 + 6676197264 = 36746^2 + 81708^2 .

It is a super-2 number, since 2×80264657802 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8026465780.

It is a congruent number.

It is an unprimeable number.

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, 200661625 + ... + 200661664.

It is an arithmetic number, because the mean of its divisors is an integer number (1404631515).

Almost surely, 28026465780 is an apocalyptic number.

It is an amenable number.

8026465780 is an abundant number, since it is smaller than the sum of its proper divisors (8829112400).

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

8026465780 is a wasteful number, since it uses less digits than its factorization.

8026465780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401323298 (or 401323296 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 8026465780 is about 89590.5451484698. The cubic root of 8026465780 is about 2002.2030540521.

The spelling of 8026465780 in words is "eight billion, twenty-six million, four hundred sixty-five thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 401323289 802646578 1605293156 2006616445 4013232890 8026465780