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28357528026 = 2329162974299
BaseRepresentation
bin11010011010001111…
…011000100111011010
32201012021200200101210
4122122033120213122
5431034011344101
621005520123550
72022504003552
oct323217304732
981167620353
1028357528026
11110320a3583
1255b4a665b6
13289c00b5a9
14153025a162
15b0e83a7d6
hex69a3d89da

28357528026 has 16 divisors (see below), whose sum is σ = 58670748000. Its totient is φ = 9126560688.

The previous prime is 28357528007. The next prime is 28357528033. The reversal of 28357528026 is 62082575382.

It is a Curzon number.

It is an unprimeable number.

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, 81486976 + ... + 81487323.

It is an arithmetic number, because the mean of its divisors is an integer number (3666921750).

Almost surely, 228357528026 is an apocalyptic number.

28357528026 is an abundant number, since it is smaller than the sum of its proper divisors (30313219974).

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

28357528026 is a wasteful number, since it uses less digits than its factorization.

28357528026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162974333.

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 28357528026 in words is "twenty-eight billion, three hundred fifty-seven million, five hundred twenty-eight thousand, twenty-six".

Divisors: 1 2 3 6 29 58 87 174 162974299 325948598 488922897 977845794 4726254671 9452509342 14178764013 28357528026