Base | Representation |
---|---|
bin | 1000001100000… |
… | …00110100000100 |
3 | 11210020120012010 |
4 | 10012000310010 |
5 | 120040410220 |
6 | 10452054220 |
7 | 1462545663 |
oct | 406006404 |
9 | 153216163 |
10 | 68685060 |
11 | 35853114 |
12 | 1b004370 |
13 | 112cb162 |
14 | 919cdda |
15 | 606b1e0 |
hex | 4180d04 |
68685060 has 48 divisors (see below), whose sum is σ = 193023936. Its totient is φ = 18248832.
The previous prime is 68685047. The next prime is 68685091. The reversal of 68685060 is 6058686.
68685060 is a nontrivial binomial coefficient, being equal to C(11721, 2).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15627 + ... + 19533.
It is an arithmetic number, because the mean of its divisors is an integer number (4021332).
Almost surely, 268685060 is an apocalyptic number.
68685060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
68685060 is the 11720-th triangular number.
It is an amenable number.
68685060 is an abundant number, since it is smaller than the sum of its proper divisors (124338876).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68685060 is a wasteful number, since it uses less digits than its factorization.
68685060 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4212 (or 4210 counting only the distinct ones).
The product of its (nonzero) digits is 69120, while the sum is 39.
The square root of 68685060 is about 8287.6450213556. The cubic root of 68685060 is about 409.5316086705.
The spelling of 68685060 in words is "sixty-eight million, six hundred eighty-five thousand, sixty".
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