Base | Representation |
---|---|
bin | 11010101000101101… |
… | …011011101011001000 |
3 | 2201211012111001121000 |
4 | 122220231123223020 |
5 | 432033133122041 |
6 | 21045551215000 |
7 | 2031512263500 |
oct | 325055335310 |
9 | 81735431530 |
10 | 28600285896 |
11 | 11147130116 |
12 | 5662217460 |
13 | 290a3b67c0 |
14 | 15545aca00 |
15 | b25cddbb6 |
hex | 6a8b5bac8 |
28600285896 has 384 divisors, whose sum is σ = 100490544000. Its totient is φ = 7469812224.
The previous prime is 28600285873. The next prime is 28600285897. The reversal of 28600285896 is 69858200682.
28600285896 is a `hidden beast` number, since 2 + 8 + 600 + 28 + 5 + 8 + 9 + 6 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is not an unprimeable number, because it can be changed into a prime (28600285897) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14996575 + ... + 14998481.
It is an arithmetic number, because the mean of its divisors is an integer number (261694125).
Almost surely, 228600285896 is an apocalyptic number.
28600285896 is a gapful number since it is divisible by the number (26) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28600285896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50245272000).
28600285896 is an abundant number, since it is smaller than the sum of its proper divisors (71890258104).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28600285896 is a wasteful number, since it uses less digits than its factorization.
28600285896 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2058 (or 2041 counting only the distinct ones).
The product of its (nonzero) digits is 3317760, while the sum is 54.
The spelling of 28600285896 in words is "twenty-eight billion, six hundred million, two hundred eighty-five thousand, eight hundred ninety-six".
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