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8809913853 = 321375298409
BaseRepresentation
bin10000011010001110…
…01001110111111101
3211201222101222211200
420031013021313331
5121020314220403
64014111010113
7431214014016
oct101507116775
924658358750
108809913853
113810a6a744
12185a509939
13aa52875a0
145d809400d
1536867eca3
hex20d1c9dfd

8809913853 has 12 divisors (see below), whose sum is σ = 13704310620. Its totient is φ = 5421485376.

The previous prime is 8809913779. The next prime is 8809913869. The reversal of 8809913853 is 3583199088.

It can be written as a sum of positive squares in 2 ways, for example, as 5126273604 + 3683640249 = 71598^2 + 60693^2 .

It is not a de Polignac number, because 8809913853 - 29 = 8809913341 is a prime.

It is a super-3 number, since 3×88099138533 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 8809913853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8809913873) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 37649088 + ... + 37649321.

It is an arithmetic number, because the mean of its divisors is an integer number (1142025885).

Almost surely, 28809913853 is an apocalyptic number.

It is an amenable number.

8809913853 is a deficient number, since it is larger than the sum of its proper divisors (4894396767).

8809913853 is a wasteful number, since it uses less digits than its factorization.

8809913853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75298428 (or 75298425 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The square root of 8809913853 is about 93861.1413365510. The cubic root of 8809913853 is about 2065.3352333862.

The spelling of 8809913853 in words is "eight billion, eight hundred nine million, nine hundred thirteen thousand, eight hundred fifty-three".

Divisors: 1 3 9 13 39 117 75298409 225895227 677685681 978879317 2936637951 8809913853