Base | Representation |
---|---|
bin | 110110001011000101… |
… | …100100101011010101 |
3 | 12120010211111001121022 |
4 | 312023011210223111 |
5 | 1423112011200241 |
6 | 42415543330525 |
7 | 4126313266322 |
oct | 661305445325 |
9 | 176124431538 |
10 | 58168068821 |
11 | 2273a3a4055 |
12 | b334450a45 |
13 | 564006a145 |
14 | 2b5b467b49 |
15 | 17a69dd54b |
hex | d8b164ad5 |
58168068821 has 2 divisors, whose sum is σ = 58168068822. Its totient is φ = 58168068820.
The previous prime is 58168068817. The next prime is 58168068869. The reversal of 58168068821 is 12886086185.
58168068821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 46997904100 + 11170164721 = 216790^2 + 105689^2 .
It is a cyclic number.
It is not a de Polignac number, because 58168068821 - 22 = 58168068817 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (58168068811) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29084034410 + 29084034411.
It is an arithmetic number, because the mean of its divisors is an integer number (29084034411).
Almost surely, 258168068821 is an apocalyptic number.
It is an amenable number.
58168068821 is a deficient number, since it is larger than the sum of its proper divisors (1).
58168068821 is an equidigital number, since it uses as much as digits as its factorization.
58168068821 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1474560, while the sum is 53.
The spelling of 58168068821 in words is "fifty-eight billion, one hundred sixty-eight million, sixty-eight thousand, eight hundred twenty-one".
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