Base | Representation |
---|---|
bin | 1001100100110… |
… | …01001001101101 |
3 | 12121010122001221 |
4 | 10302121021231 |
5 | 131030202320 |
6 | 11545303341 |
7 | 1663462300 |
oct | 462311155 |
9 | 177118057 |
10 | 80319085 |
11 | 41379a10 |
12 | 22a94b51 |
13 | 138426b2 |
14 | a94ab37 |
15 | 70b83aa |
hex | 4c9926d |
80319085 has 24 divisors (see below), whose sum is σ = 122315616. Its totient is φ = 50067360.
The previous prime is 80319037. The next prime is 80319089. The reversal of 80319085 is 58091308.
It is a de Polignac number, because none of the positive numbers 2k-80319085 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 80319085.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80319089) 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 23 ways as a sum of consecutive naturals, for example, 12207 + ... + 17596.
It is an arithmetic number, because the mean of its divisors is an integer number (5096484).
Almost surely, 280319085 is an apocalyptic number.
It is an amenable number.
80319085 is a deficient number, since it is larger than the sum of its proper divisors (41996531).
80319085 is a wasteful number, since it uses less digits than its factorization.
80319085 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 29833 (or 29826 counting only the distinct ones).
The product of its (nonzero) digits is 8640, while the sum is 34.
The square root of 80319085 is about 8962.0915527571. The cubic root of 80319085 is about 431.4590512037.
The spelling of 80319085 in words is "eighty million, three hundred nineteen thousand, eighty-five".
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