Base | Representation |
---|---|
bin | 1010001001011… |
… | …11001001111101 |
3 | 12221011221101200 |
4 | 11010233021331 |
5 | 133243042210 |
6 | 12240330113 |
7 | 2052401010 |
oct | 504571175 |
9 | 187157350 |
10 | 85127805 |
11 | 44063864 |
12 | 24613939 |
13 | 148373a9 |
14 | b43d377 |
15 | 77180c0 |
hex | 512f27d |
85127805 has 48 divisors (see below), whose sum is σ = 171849600. Its totient is φ = 38173824.
The previous prime is 85127803. The next prime is 85127813. The reversal of 85127805 is 50872158.
It is not a de Polignac number, because 85127805 - 21 = 85127803 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 85127805.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (85127803) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14146 + ... + 19244.
It is an arithmetic number, because the mean of its divisors is an integer number (3580200).
Almost surely, 285127805 is an apocalyptic number.
It is an amenable number.
85127805 is an abundant number, since it is smaller than the sum of its proper divisors (86721795).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
85127805 is a wasteful number, since it uses less digits than its factorization.
85127805 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5170 (or 5167 counting only the distinct ones).
The product of its (nonzero) digits is 22400, while the sum is 36.
The square root of 85127805 is about 9226.4730531227. The cubic root of 85127805 is about 439.9032242396.
The spelling of 85127805 in words is "eighty-five million, one hundred twenty-seven thousand, eight hundred five".
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