Base | Representation |
---|---|
bin | 1010001001101… |
… | …11001100011010 |
3 | 12221020121120010 |
4 | 11010313030122 |
5 | 133300120410 |
6 | 12241142350 |
7 | 2052566004 |
oct | 504671432 |
9 | 187217503 |
10 | 85160730 |
11 | 44086576 |
12 | 2462a9b6 |
13 | 14849385 |
14 | b44b374 |
15 | 7722c20 |
hex | 513731a |
85160730 has 32 divisors (see below), whose sum is σ = 204773184. Its totient is φ = 22666496.
The previous prime is 85160723. The next prime is 85160741. The reversal of 85160730 is 3706158.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15397 + ... + 20183.
It is an arithmetic number, because the mean of its divisors is an integer number (6399162).
Almost surely, 285160730 is an apocalyptic number.
85160730 is an abundant number, since it is smaller than the sum of its proper divisors (119612454).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
85160730 is a wasteful number, since it uses less digits than its factorization.
85160730 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5390.
The product of its (nonzero) digits is 5040, while the sum is 30.
The square root of 85160730 is about 9228.2571485628. The cubic root of 85160730 is about 439.9599309242.
Adding to 85160730 its reverse (3706158), we get a palindrome (88866888).
The spelling of 85160730 in words is "eighty-five million, one hundred sixty thousand, seven hundred thirty".
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