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28858886016 = 273631711897
BaseRepresentation
bin11010111000000111…
…111010011110000000
32202111020002022021020
4122320013322132000
5433100333323031
621131350025440
72041102324632
oct327007723600
982436068236
1028858886016
111126a0a8224
125714948280
13294bb4a81c
14157aa86a52
15b3d871096
hex6b81fa780

28858886016 has 64 divisors (see below), whose sum is σ = 76674995280. Its totient is φ = 9617297408.

The previous prime is 28858886009. The next prime is 28858886053. The reversal of 28858886016 is 61068885882.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

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, 2419780 + ... + 2431676.

Almost surely, 228858886016 is an apocalyptic number.

It is an amenable number.

28858886016 is an abundant number, since it is smaller than the sum of its proper divisors (47816109264).

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

28858886016 is a wasteful number, since it uses less digits than its factorization.

28858886016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18231 (or 18219 counting only the distinct ones).

The product of its (nonzero) digits is 11796480, while the sum is 60.

The spelling of 28858886016 in words is "twenty-eight billion, eight hundred fifty-eight million, eight hundred eighty-six thousand, sixteen".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 384 6317 11897 12634 18951 23794 25268 35691 37902 47588 50536 71382 75804 95176 101072 142764 151608 190352 202144 285528 303216 380704 404288 571056 606432 761408 808576 1142112 1212864 1522816 2284224 2425728 4568448 75153349 150306698 225460047 300613396 450920094 601226792 901840188 1202453584 1803680376 2404907168 3607360752 4809814336 7214721504 9619628672 14429443008 28858886016