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9768007428 = 223814000619
BaseRepresentation
bin10010001100011011…
…11111011100000100
3221012202020012010220
421012031333130010
5130001102214203
64253134144340
7464026456524
oct110615773404
927182205126
109768007428
114162870613
121a873520b0
13bc891126a
14689413684
153c2834653
hex24637f704

9768007428 has 12 divisors (see below), whose sum is σ = 22792017360. Its totient is φ = 3256002472.

The previous prime is 9768007421. The next prime is 9768007429. The reversal of 9768007428 is 8247008679.

9768007428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×97680074282 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9768007421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407000298 + ... + 407000321.

It is an arithmetic number, because the mean of its divisors is an integer number (1899334780).

Almost surely, 29768007428 is an apocalyptic number.

It is an amenable number.

9768007428 is an abundant number, since it is smaller than the sum of its proper divisors (13024009932).

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

9768007428 is a wasteful number, since it uses less digits than its factorization.

9768007428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814000626 (or 814000624 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 51.

The square root of 9768007428 is about 98833.2303833078. The cubic root of 9768007428 is about 2137.6437387146.

The spelling of 9768007428 in words is "nine billion, seven hundred sixty-eight million, seven thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 814000619 1628001238 2442001857 3256002476 4884003714 9768007428