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8750328820 = 225437516441
BaseRepresentation
bin10000010011000111…
…10110101111110100
3211120211021202112121
420021203312233310
5120410041010240
64004141525324
7426561365512
oct101143665764
924524252477
108750328820
113790372612
121842573844
13a95b2447c
145d01c34b2
1536331004a
hex2098f6bf4

8750328820 has 12 divisors (see below), whose sum is σ = 18375690564. Its totient is φ = 3500131520.

The previous prime is 8750328749. The next prime is 8750328919. The reversal of 8750328820 is 288230578.

It can be written as a sum of positive squares in 2 ways, for example, as 1771063056 + 6979265764 = 42084^2 + 83542^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218758201 + ... + 218758240.

It is an arithmetic number, because the mean of its divisors is an integer number (1531307547).

Almost surely, 28750328820 is an apocalyptic number.

It is an amenable number.

8750328820 is an abundant number, since it is smaller than the sum of its proper divisors (9625361744).

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

8750328820 is a wasteful number, since it uses less digits than its factorization.

8750328820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437516450 (or 437516448 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 8750328820 is about 93543.1922696676. The cubic root of 8750328820 is about 2060.6684621720.

The spelling of 8750328820 in words is "eight billion, seven hundred fifty million, three hundred twenty-eight thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 437516441 875032882 1750065764 2187582205 4375164410 8750328820