Base | Representation |
---|---|
bin | 101111111111110… |
… | …011011101100000 |
3 | 2002010020012012120 |
4 | 233333303131200 |
5 | 3122121130013 |
6 | 211523224240 |
7 | 25645361145 |
oct | 5777633540 |
9 | 2063205176 |
10 | 805255008 |
11 | 383600008 |
12 | 1a5818080 |
13 | caaa2a6c |
14 | 78d363cc |
15 | 4aa64123 |
hex | 2fff3760 |
805255008 has 48 divisors (see below), whose sum is σ = 2181989376. Its totient is φ = 259758720.
The previous prime is 805254943. The next prime is 805255019. The reversal of 805255008 is 800552508.
It is a tau number, because it is divible by the number of its divisors (48).
It is a self number, because there is not a number n which added to its sum of digits gives 805255008.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132316 + ... + 138267.
It is an arithmetic number, because the mean of its divisors is an integer number (45458112).
Almost surely, 2805255008 is an apocalyptic number.
It is an amenable number.
805255008 is an abundant number, since it is smaller than the sum of its proper divisors (1376734368).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
805255008 is a wasteful number, since it uses less digits than its factorization.
805255008 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 270627 (or 270619 counting only the distinct ones).
The product of its (nonzero) digits is 16000, while the sum is 33.
The square root of 805255008 is about 28377.0154878909. The cubic root of 805255008 is about 930.3459644736.
The spelling of 805255008 in words is "eight hundred five million, two hundred fifty-five thousand, eight".
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