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28852011725 = 5210611087729
BaseRepresentation
bin11010110111101101…
…101100001011001101
32202110202011001111212
4122313231230023031
5433042103333400
621130542424205
72040660024155
oct326755541315
982422131455
1028852011725
1111266232499
125712592065
13294a5b18b4
141579bb7765
15b3ce64335
hex6b7b6c2cd

28852011725 has 12 divisors (see below), whose sum is σ = 35810247060. Its totient is φ = 23059833600.

The previous prime is 28852011691. The next prime is 28852011751. The reversal of 28852011725 is 52711025882.

It can be written as a sum of positive squares in 6 ways, for example, as 1119437764 + 27732573961 = 33458^2 + 166531^2 .

It is not a de Polignac number, because 28852011725 - 230 = 27778269901 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 517340 + ... + 570389.

It is an arithmetic number, because the mean of its divisors is an integer number (2984187255).

Almost surely, 228852011725 is an apocalyptic number.

28852011725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28852011725 is a deficient number, since it is larger than the sum of its proper divisors (6958235335).

28852011725 is a wasteful number, since it uses less digits than its factorization.

28852011725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088800 (or 1088795 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 41.

The spelling of 28852011725 in words is "twenty-eight billion, eight hundred fifty-two million, eleven thousand, seven hundred twenty-five".

Divisors: 1 5 25 1061 5305 26525 1087729 5438645 27193225 1154080469 5770402345 28852011725