Base | Representation |
---|---|
bin | 111111011100000011… |
… | …011111101101100000 |
3 | 20111211011001022122111 |
4 | 333130003133231200 |
5 | 2104000300211110 |
6 | 51143043045104 |
7 | 4630662650116 |
oct | 773403375540 |
9 | 214734038574 |
10 | 68116413280 |
11 | 26984a37533 |
12 | 11250070794 |
13 | 656713c7b6 |
14 | 34227c1ab6 |
15 | 1b8a095e8a |
hex | fdc0dfb60 |
68116413280 has 96 divisors (see below), whose sum is σ = 170459795520. Its totient is φ = 25633505280.
The previous prime is 68116413271. The next prime is 68116413317. The reversal of 68116413280 is 8231461186.
It is a Harshad number since it is a multiple of its sum of digits (40).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12076701 + ... + 12082339.
It is an arithmetic number, because the mean of its divisors is an integer number (1775622870).
Almost surely, 268116413280 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68116413280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85229897760).
68116413280 is an abundant number, since it is smaller than the sum of its proper divisors (102343382240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68116413280 is a wasteful number, since it uses less digits than its factorization.
68116413280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10112 (or 10104 counting only the distinct ones).
The product of its (nonzero) digits is 55296, while the sum is 40.
The spelling of 68116413280 in words is "sixty-eight billion, one hundred sixteen million, four hundred thirteen thousand, two hundred eighty".
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