Base | Representation |
---|---|
bin | 1010001110010… |
… | …01101111100001 |
3 | 12222101002222002 |
4 | 11013021233201 |
5 | 133423322433 |
6 | 12302053345 |
7 | 2060646023 |
oct | 507115741 |
9 | 188332862 |
10 | 85760993 |
11 | 4445655a |
12 | 2487a255 |
13 | 149c9666 |
14 | b566013 |
15 | 77e09e8 |
hex | 51c9be1 |
85760993 has 4 divisors (see below), whose sum is σ = 86593728. Its totient is φ = 84928260.
The previous prime is 85760981. The next prime is 85760999. The reversal of 85760993 is 39906758.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39906758 = 2 ⋅19953379.
It is a cyclic number.
It is not a de Polignac number, because 85760993 - 224 = 68983777 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (85760999) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416213 + ... + 416418.
It is an arithmetic number, because the mean of its divisors is an integer number (21648432).
Almost surely, 285760993 is an apocalyptic number.
It is an amenable number.
85760993 is a deficient number, since it is larger than the sum of its proper divisors (832735).
85760993 is a wasteful number, since it uses less digits than its factorization.
85760993 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 832734.
The product of its (nonzero) digits is 408240, while the sum is 47.
The square root of 85760993 is about 9260.7231359111. The cubic root of 85760993 is about 440.9912106201.
The spelling of 85760993 in words is "eighty-five million, seven hundred sixty thousand, nine hundred ninety-three".
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