Base | Representation |
---|---|
bin | 111111011011100100… |
… | …101001001011001011 |
3 | 20111210120211102102000 |
4 | 333123210221023023 |
5 | 2103441212404304 |
6 | 51142153442043 |
7 | 4630534133610 |
oct | 773344511313 |
9 | 214716742360 |
10 | 68108325579 |
11 | 26980413088 |
12 | 11249410323 |
13 | 656556a488 |
14 | 34216b8507 |
15 | 1b894e9939 |
hex | fdb9292cb |
68108325579 has 32 divisors (see below), whose sum is σ = 119292096000. Its totient is φ = 37577004192.
The previous prime is 68108325569. The next prime is 68108325641. The reversal of 68108325579 is 97552380186.
68108325579 is a `hidden beast` number, since 6 + 8 + 1 + 0 + 83 + 2 + 557 + 9 = 666.
It is not a de Polignac number, because 68108325579 - 211 = 68108323531 is a prime.
It is not an unprimeable number, because it can be changed into a prime (68108325569) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6207649 + ... + 6218610.
It is an arithmetic number, because the mean of its divisors is an integer number (3727878000).
Almost surely, 268108325579 is an apocalyptic number.
68108325579 is a deficient number, since it is larger than the sum of its proper divisors (51183770421).
68108325579 is a wasteful number, since it uses less digits than its factorization.
68108325579 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12426304 (or 12426298 counting only the distinct ones).
The product of its (nonzero) digits is 3628800, while the sum is 54.
The spelling of 68108325579 in words is "sixty-eight billion, one hundred eight million, three hundred twenty-five thousand, five hundred seventy-nine".
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