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28175560968 = 2331173981707
BaseRepresentation
bin11010001111011001…
…001111000100001000
32200201121021210112010
4122033121033010020
5430200420422333
620535500015520
72015134213422
oct321731170410
980647253463
1028175560968
1110a49407a85
125563b315a0
1328703c9289
14151400d812
15aed894563
hex68f64f108

28175560968 has 16 divisors (see below), whose sum is σ = 70438902480. Its totient is φ = 9391853648.

The previous prime is 28175560967. The next prime is 28175560991. The reversal of 28175560968 is 86906557182.

It is a super-2 number, since 2×281755609682 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28175560967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586990830 + ... + 586990877.

It is an arithmetic number, because the mean of its divisors is an integer number (4402431405).

Almost surely, 228175560968 is an apocalyptic number.

It is an amenable number.

28175560968 is an abundant number, since it is smaller than the sum of its proper divisors (42263341512).

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

28175560968 is a wasteful number, since it uses less digits than its factorization.

28175560968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173981716 (or 1173981712 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 57.

The spelling of 28175560968 in words is "twenty-eight billion, one hundred seventy-five million, five hundred sixty thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 1173981707 2347963414 3521945121 4695926828 7043890242 9391853656 14087780484 28175560968