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28088168253294 = 237959257738931
BaseRepresentation
bin1100110001011110010010…
…10010101000011101101110
310200110012110201222020112210
412120233021102220131232
512140144032033101134
6135423305405511250
75626205664565242
oct630571122503556
9120405421866483
1028088168253294
118a4a1417a3a06
123197812872526
13128991a373076
146d169041a422
1533a98744d2e9
hex198bc94a876e

28088168253294 has 16 divisors (see below), whose sum is σ = 56887429374720. Its totient is φ = 9244207273080.

The previous prime is 28088168253293. The next prime is 28088168253323. The reversal of 28088168253294 is 49235286188082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28088168253293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29628868992 + ... + 29628869939.

It is an arithmetic number, because the mean of its divisors is an integer number (3555464335920).

Almost surely, 228088168253294 is an apocalyptic number.

28088168253294 is an abundant number, since it is smaller than the sum of its proper divisors (28799261121426).

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

28088168253294 is a wasteful number, since it uses less digits than its factorization.

28088168253294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59257739015.

The product of its (nonzero) digits is 106168320, while the sum is 66.

The spelling of 28088168253294 in words is "twenty-eight trillion, eighty-eight billion, one hundred sixty-eight million, two hundred fifty-three thousand, two hundred ninety-four".

Divisors: 1 2 3 6 79 158 237 474 59257738931 118515477862 177773216793 355546433586 4681361375549 9362722751098 14044084126647 28088168253294