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9387428986 = 2134315115557
BaseRepresentation
bin10001011111000100…
…01100110001111010
3220020020002210200001
420233202030301322
5123211140211421
64151301103214
7451425554425
oct105742146172
926206083601
109387428986
113a87a60381
12199b9b7b0a
13b67b0ca10
14650a669bc
1539e20a691
hex22f88cc7a

9387428986 has 32 divisors (see below), whose sum is σ = 15530030208. Its totient is φ = 4228338240.

The previous prime is 9387428983. The next prime is 9387428993. The reversal of 9387428986 is 6898247839.

9387428986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (9387428983) 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 15 ways as a sum of consecutive naturals, for example, 1686520 + ... + 1692076.

It is an arithmetic number, because the mean of its divisors is an integer number (485313444).

Almost surely, 29387428986 is an apocalyptic number.

9387428986 is a deficient number, since it is larger than the sum of its proper divisors (6142601222).

9387428986 is a wasteful number, since it uses less digits than its factorization.

9387428986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7126.

The product of its digits is 41803776, while the sum is 64.

The square root of 9387428986 is about 96888.7454042006. The cubic root of 9387428986 is about 2109.5130751255.

The spelling of 9387428986 in words is "nine billion, three hundred eighty-seven million, four hundred twenty-eight thousand, nine hundred eighty-six".

Divisors: 1 2 13 26 43 86 559 1118 1511 3022 5557 11114 19643 39286 64973 72241 129946 144482 238951 477902 844649 1689298 3106363 6212726 8396627 16793254 109156151 218312302 361054961 722109922 4693714493 9387428986