Base | Representation |
---|---|
bin | 1010001001011… |
… | …01111111000000 |
3 | 12221011200211000 |
4 | 11010231333000 |
5 | 133242414013 |
6 | 12240252000 |
7 | 2052351015 |
oct | 504557700 |
9 | 187150730 |
10 | 85123008 |
11 | 440601a3 |
12 | 24611000 |
13 | 14835159 |
14 | b43b70c |
15 | 7716973 |
hex | 512dfc0 |
85123008 has 56 divisors (see below), whose sum is σ = 250250960. Its totient is φ = 28373760.
The previous prime is 85123007. The next prime is 85123043. The reversal of 85123008 is 80032158.
It is a happy number.
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (85123007) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 22903 + ... + 26358.
Almost surely, 285123008 is an apocalyptic number.
It is an amenable number.
85123008 is an abundant number, since it is smaller than the sum of its proper divisors (165127952).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
85123008 is a wasteful number, since it uses less digits than its factorization.
85123008 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 49282 (or 49266 counting only the distinct ones).
The product of its (nonzero) digits is 1920, while the sum is 27.
The square root of 85123008 is about 9226.2130909707. The cubic root of 85123008 is about 439.8949611525.
The spelling of 85123008 in words is "eighty-five million, one hundred twenty-three thousand, eight".
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