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28800668016 = 243366668213
BaseRepresentation
bin11010110100101001…
…110101000101110000
32202100011112112012000
4122310221311011300
5432440432334031
621121510134000
72036464432101
oct326451650560
982304475160
1028800668016
111123a25417a
1256b9351300
13293ca759c3
1415730503a8
15b386c13e6
hex6b4a75170

28800668016 has 40 divisors (see below), whose sum is σ = 82668585360. Its totient is φ = 9600222528.

The previous prime is 28800668009. The next prime is 28800668047. The reversal of 28800668016 is 61086600882.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 33333675 + ... + 33334538.

It is an arithmetic number, because the mean of its divisors is an integer number (2066714634).

Almost surely, 228800668016 is an apocalyptic number.

It is an amenable number.

28800668016 is an abundant number, since it is smaller than the sum of its proper divisors (53867917344).

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

28800668016 is a wasteful number, since it uses less digits than its factorization.

28800668016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66668230 (or 66668218 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 28800668016 in words is "twenty-eight billion, eight hundred million, six hundred sixty-eight thousand, sixteen".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 66668213 133336426 200004639 266672852 400009278 533345704 600013917 800018556 1066691408 1200027834 1600037112 1800041751 2400055668 3200074224 3600083502 4800111336 7200167004 9600222672 14400334008 28800668016