Base | Representation |
---|---|
bin | 1010001001001… |
… | …00110000011000 |
3 | 12221002202222000 |
4 | 11010210300120 |
5 | 133240211313 |
6 | 12235401000 |
7 | 2052132555 |
oct | 504446030 |
9 | 187082860 |
10 | 85085208 |
11 | 4403485a |
12 | 245b3160 |
13 | 14820ba0 |
14 | b42ba2c |
15 | 770a673 |
hex | 5124c18 |
85085208 has 128 divisors (see below), whose sum is σ = 257476800. Its totient is φ = 25878528.
The previous prime is 85085207. The next prime is 85085213. The reversal of 85085208 is 80258058.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (85085201) 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, 440760 + ... + 440952.
Almost surely, 285085208 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 85085208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128738400).
85085208 is an abundant number, since it is smaller than the sum of its proper divisors (172391592).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
85085208 is a wasteful number, since it uses less digits than its factorization.
85085208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 378 (or 368 counting only the distinct ones).
The product of its (nonzero) digits is 25600, while the sum is 36.
The square root of 85085208 is about 9224.1643523953. The cubic root of 85085208 is about 439.8298377825.
The spelling of 85085208 in words is "eighty-five million, eighty-five thousand, two hundred eight".
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