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28857088110 = 23531292710601
BaseRepresentation
bin11010111000000001…
…000011100001101110
32202111002200222000010
4122320001003201232
5433044403304420
621131243314050
72041051126134
oct327001034156
982432628003
1028857088110
111126908a454
12571421b926
13294b66b386
14157a739754
15b3d6184e0
hex6b804386e

28857088110 has 64 divisors (see below), whose sum is σ = 71522279424. Its totient is φ = 7443744000.

The previous prime is 28857088103. The next prime is 28857088111. The reversal of 28857088110 is 1188075882.

It is a self number, because there is not a number n which added to its sum of digits gives 28857088110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28857088111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2716810 + ... + 2727410.

It is an arithmetic number, because the mean of its divisors is an integer number (1117535616).

Almost surely, 228857088110 is an apocalyptic number.

28857088110 is an abundant number, since it is smaller than the sum of its proper divisors (42665191314).

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

28857088110 is a wasteful number, since it uses less digits than its factorization.

28857088110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13569.

The product of its (nonzero) digits is 286720, while the sum is 48.

The spelling of 28857088110 in words is "twenty-eight billion, eight hundred fifty-seven million, eighty-eight thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 2927 5854 8781 10601 14635 17562 21202 29270 31803 43905 53005 63606 87810 90737 106010 159015 181474 272211 318030 328631 453685 544422 657262 907370 985893 1361055 1643155 1971786 2722110 3286310 4929465 9858930 31029127 62058254 93087381 155145635 186174762 310291270 465436905 930873810 961902937 1923805874 2885708811 4809514685 5771417622 9619029370 14428544055 28857088110