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28360568241 = 3229233466357
BaseRepresentation
bin11010011010011010…
…111110110110110001
32201012111102010210100
4122122122332312301
5431040301140431
621010105223013
72022541565265
oct323232766661
981174363710
1028360568241
111103388a755
1255b5a91a69
13289c834335
14153080c0a5
15b0ec3b4e6
hex69a6bedb1

28360568241 has 24 divisors (see below), whose sum is σ = 42559831080. Its totient is φ = 18176691456.

The previous prime is 28360568231. The next prime is 28360568263. The reversal of 28360568241 is 14286506382.

28360568241 is a `hidden beast` number, since 2 + 8 + 3 + 60 + 568 + 24 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4624544016 + 23736024225 = 68004^2 + 154065^2 .

It is not a de Polignac number, because 28360568241 - 218 = 28360306097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28360568231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172366 + ... + 293991.

It is an arithmetic number, because the mean of its divisors is an integer number (1773326295).

Almost surely, 228360568241 is an apocalyptic number.

It is an amenable number.

28360568241 is a deficient number, since it is larger than the sum of its proper divisors (14199262839).

28360568241 is a wasteful number, since it uses less digits than its factorization.

28360568241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466625 (or 466622 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 28360568241 in words is "twenty-eight billion, three hundred sixty million, five hundred sixty-eight thousand, two hundred forty-one".

Divisors: 1 3 9 29 87 233 261 699 2097 6757 20271 60813 466357 1399071 4197213 13524353 40573059 108661181 121719177 325983543 977950629 3151174249 9453522747 28360568241