Base | Representation |
---|---|
bin | 111111101001100000… |
… | …100001111011011110 |
3 | 20112101212202211111220 |
4 | 333221200201323132 |
5 | 2104431041101400 |
6 | 51221304554210 |
7 | 4636403335416 |
oct | 775140417336 |
9 | 215355684456 |
10 | 68342128350 |
11 | 26a90393611 |
12 | 112b3782966 |
13 | 65a1b2b602 |
14 | 3444779646 |
15 | 1b9ecce7a0 |
hex | fe9821ede |
68342128350 has 96 divisors (see below), whose sum is σ = 174177289440. Its totient is φ = 17721008640.
The previous prime is 68342128333. The next prime is 68342128357. The reversal of 68342128350 is 5382124386.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68342128357) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12812284 + ... + 12817616.
It is an arithmetic number, because the mean of its divisors is an integer number (1814346765).
Almost surely, 268342128350 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68342128350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87088644720).
68342128350 is an abundant number, since it is smaller than the sum of its proper divisors (105835161090).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68342128350 is a wasteful number, since it uses less digits than its factorization.
68342128350 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7694 (or 7689 counting only the distinct ones).
The product of its (nonzero) digits is 276480, while the sum is 42.
The spelling of 68342128350 in words is "sixty-eight billion, three hundred forty-two million, one hundred twenty-eight thousand, three hundred fifty".
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