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28936527841 = 1312971716181
BaseRepresentation
bin11010111100110000…
…000101111111100001
32202200122011220211101
4122330300011333201
5433230222342331
621143202114401
72043034266634
oct327460057741
982618156741
1028936527841
11112a9a08721
12573694ba01
132961c63730
1415870d7c1b
15b455ab061
hex6bcc05fe1

28936527841 has 8 divisors (see below), whose sum is σ = 31186459304. Its totient is φ = 26690031360.

The previous prime is 28936527821. The next prime is 28936527859. The reversal of 28936527841 is 14872563982.

It can be written as a sum of positive squares in 4 ways, for example, as 19095094225 + 9841433616 = 138185^2 + 99204^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28936527841 - 29 = 28936527329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28936527821) 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 7 ways as a sum of consecutive naturals, for example, 841230 + ... + 874951.

It is an arithmetic number, because the mean of its divisors is an integer number (3898307413).

Almost surely, 228936527841 is an apocalyptic number.

It is an amenable number.

28936527841 is a deficient number, since it is larger than the sum of its proper divisors (2249931463).

28936527841 is a wasteful number, since it uses less digits than its factorization.

28936527841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717491.

The product of its digits is 5806080, while the sum is 55.

It can be divided in two parts, 289365 and 27841, that added together give a triangular number (317206 = T796).

The spelling of 28936527841 in words is "twenty-eight billion, nine hundred thirty-six million, five hundred twenty-seven thousand, eight hundred forty-one".

Divisors: 1 13 1297 16861 1716181 22310353 2225886757 28936527841