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8942785925 = 52357711437
BaseRepresentation
bin10000101010000100…
…00001010110000101
3212002020102121001112
420111002001112011
5121303323122200
64035214534405
7434416266113
oct102502012605
925066377045
108942785925
113879a73477
121896b07405
13ac696a408
1460b9a0ab3
15375179535
hex215081585

8942785925 has 6 divisors (see below), whose sum is σ = 11089054578. Its totient is φ = 7154228720.

The previous prime is 8942785921. The next prime is 8942785967. The reversal of 8942785925 is 5295872498.

8942785925 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1655431969 + 7287353956 = 40687^2 + 85366^2 .

It is not a de Polignac number, because 8942785925 - 22 = 8942785921 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8942785921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178855694 + ... + 178855743.

It is an arithmetic number, because the mean of its divisors is an integer number (1848175763).

Almost surely, 28942785925 is an apocalyptic number.

It is an amenable number.

8942785925 is a deficient number, since it is larger than the sum of its proper divisors (2146268653).

8942785925 is a wasteful number, since it uses less digits than its factorization.

8942785925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357711447 (or 357711442 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 59.

The square root of 8942785925 is about 94566.3043848072. The cubic root of 8942785925 is about 2075.6666692227. Note that the first 5 decimals are identical.

The spelling of 8942785925 in words is "eight billion, nine hundred forty-two million, seven hundred eighty-five thousand, nine hundred twenty-five".

Divisors: 1 5 25 357711437 1788557185 8942785925