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28000848685 = 539746330467
BaseRepresentation
bin11010000100111110…
…110000101100101101
32200021102112111022211
4122010332300230231
5424321204124220
620510255210421
72010613200235
oct320476605455
980242474284
1028000848685
1110969827067
125515516a11
132843157124
1414d8b30cc5
15add382b5a
hex684fb0b2d

28000848685 has 16 divisors (see below), whose sum is σ = 33759518976. Its totient is φ = 22295262528.

The previous prime is 28000848569. The next prime is 28000848697. The reversal of 28000848685 is 58684800082.

It is a cyclic number.

It is not a de Polignac number, because 28000848685 - 211 = 28000846637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 903822 + ... + 934288.

It is an arithmetic number, because the mean of its divisors is an integer number (2109969936).

Almost surely, 228000848685 is an apocalyptic number.

It is an amenable number.

28000848685 is a deficient number, since it is larger than the sum of its proper divisors (5758670291).

28000848685 is a wasteful number, since it uses less digits than its factorization.

28000848685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31332.

The product of its (nonzero) digits is 983040, while the sum is 49.

The spelling of 28000848685 in words is "twenty-eight billion, eight hundred forty-eight thousand, six hundred eighty-five".

Divisors: 1 5 397 463 1985 2315 30467 152335 183811 919055 12095399 14106221 60476995 70531105 5600169737 28000848685