Base | Representation |
---|---|
bin | 1010001001110… |
… | …00111110000101 |
3 | 12221020222112120 |
4 | 11010320332011 |
5 | 133300334010 |
6 | 12241240153 |
7 | 2052626136 |
oct | 504707605 |
9 | 187228476 |
10 | 85168005 |
11 | 44090a8a |
12 | 24633059 |
13 | 1484c790 |
14 | b44dc8d |
15 | 7724e70 |
hex | 5138f85 |
85168005 has 64 divisors (see below), whose sum is σ = 154355712. Its totient is φ = 39813120.
The previous prime is 85167991. The next prime is 85168019. The reversal of 85168005 is 50086158.
It is an interprime number because it is at equal distance from previous prime (85167991) and next prime (85168019).
It is not a de Polignac number, because 85168005 - 29 = 85167493 is a prime.
It is a congruent number.
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 63 ways as a sum of consecutive naturals, for example, 441189 + ... + 441381.
It is an arithmetic number, because the mean of its divisors is an integer number (2411808).
Almost surely, 285168005 is an apocalyptic number.
It is an amenable number.
85168005 is a deficient number, since it is larger than the sum of its proper divisors (69187707).
85168005 is a wasteful number, since it uses less digits than its factorization.
85168005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 318.
The product of its (nonzero) digits is 9600, while the sum is 33.
The square root of 85168005 is about 9228.6513099152. The cubic root of 85168005 is about 439.9724586756.
The spelling of 85168005 in words is "eighty-five million, one hundred sixty-eight thousand, five".
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