Base | Representation |
---|---|
bin | 101000111010000… |
… | …010011101101000 |
3 | 1202211101210211121 |
4 | 220322002131220 |
5 | 2401143144310 |
6 | 152033505024 |
7 | 23002323421 |
oct | 5072023550 |
9 | 1684353747 |
10 | 686303080 |
11 | 322444731 |
12 | 171a12174 |
13 | ac254bc8 |
14 | 67210648 |
15 | 403b90da |
hex | 28e82768 |
686303080 has 64 divisors (see below), whose sum is σ = 1567907280. Its totient is φ = 270336000.
The previous prime is 686303077. The next prime is 686303083. The reversal of 686303080 is 80303686.
It is an interprime number because it is at equal distance from previous prime (686303077) and next prime (686303083).
It can be written as a sum of positive squares in 8 ways, for example, as 682358884 + 3944196 = 26122^2 + 1986^2 .
It is not an unprimeable number, because it can be changed into a prime (686303083) 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 15 ways as a sum of consecutive naturals, for example, 1037950 + ... + 1038610.
Almost surely, 2686303080 is an apocalyptic number.
It is an amenable number.
686303080 is an abundant number, since it is smaller than the sum of its proper divisors (881604200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
686303080 is a wasteful number, since it uses less digits than its factorization.
686303080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1030 (or 1026 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 34.
The square root of 686303080 is about 26197.3868925891. The cubic root of 686303080 is about 882.0745990930.
The spelling of 686303080 in words is "six hundred eighty-six million, three hundred three thousand, eighty".
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