Base | Representation |
---|---|
bin | 111111100111100111… |
… | …010011100011100101 |
3 | 20112022122222022212221 |
4 | 333213213103203211 |
5 | 2104344422200203 |
6 | 51214211512341 |
7 | 4635536252341 |
oct | 774747234345 |
9 | 215278868787 |
10 | 68310350053 |
11 | 26a74459060 |
12 | 112a4bb86b1 |
13 | 659838309a |
14 | 3440466621 |
15 | 1b9c103abd |
hex | fe79d38e5 |
68310350053 has 8 divisors (see below), whose sum is σ = 74522285280. Its totient is φ = 62098732080.
The previous prime is 68310350029. The next prime is 68310350071. The reversal of 68310350053 is 35005301386.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-68310350053 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68310350023) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 730051 + ... + 818287.
It is an arithmetic number, because the mean of its divisors is an integer number (9315285660).
Almost surely, 268310350053 is an apocalyptic number.
It is an amenable number.
68310350053 is a deficient number, since it is larger than the sum of its proper divisors (6211935227).
68310350053 is a wasteful number, since it uses less digits than its factorization.
68310350053 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 158627.
The product of its (nonzero) digits is 32400, while the sum is 34.
The spelling of 68310350053 in words is "sixty-eight billion, three hundred ten million, three hundred fifty thousand, fifty-three".
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