Base | Representation |
---|---|
bin | 1010001000111… |
… | …11100010001010 |
3 | 12221001200121210 |
4 | 11010133202022 |
5 | 133234020233 |
6 | 12235113550 |
7 | 2052013320 |
oct | 504374212 |
9 | 187050553 |
10 | 85063818 |
11 | 4401a784 |
12 | 245a28b6 |
13 | 14814228 |
14 | b423d10 |
15 | 7704163 |
hex | 511f88a |
85063818 has 64 divisors (see below), whose sum is σ = 207947520. Its totient is φ = 22643712.
The previous prime is 85063813. The next prime is 85063831. The reversal of 85063818 is 81836058.
It is a happy number.
It is a super-3 number, since 3×850638183 (a number of 25 digits) contains 333 as substring.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (85063813) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77280 + ... + 78372.
It is an arithmetic number, because the mean of its divisors is an integer number (3249180).
Almost surely, 285063818 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 85063818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103973760).
85063818 is an abundant number, since it is smaller than the sum of its proper divisors (122883702).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
85063818 is a wasteful number, since it uses less digits than its factorization.
85063818 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1231.
The product of its (nonzero) digits is 46080, while the sum is 39.
The square root of 85063818 is about 9223.0048248930. The cubic root of 85063818 is about 439.7929776791.
The spelling of 85063818 in words is "eighty-five million, sixty-three thousand, eight hundred eighteen".
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