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28136848608 = 2533115383673
BaseRepresentation
bin11010001101000101…
…100011110011100000
32200121220110000011000
4122031011203303200
5430111013123413
620531554152000
72014154160411
oct321505436340
980556400130
1028136848608
1110a295768a0
125552b82600
13286539385b
14150cc13808
15aea299073
hex68d163ce0

28136848608 has 384 divisors, whose sum is σ = 92451663360. Its totient is φ = 8252375040.

The previous prime is 28136848567. The next prime is 28136848627. The reversal of 28136848608 is 80684863182.

28136848608 is a `hidden beast` number, since 28 + 1 + 3 + 6 + 8 + 4 + 8 + 608 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41807760 + ... + 41808432.

It is an arithmetic number, because the mean of its divisors is an integer number (240759540).

Almost surely, 228136848608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28136848608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46225831680).

28136848608 is an abundant number, since it is smaller than the sum of its proper divisors (64314814752).

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

28136848608 is a wasteful number, since it uses less digits than its factorization.

28136848608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 54.

The spelling of 28136848608 in words is "twenty-eight billion, one hundred thirty-six million, eight hundred forty-eight thousand, six hundred eight".