Base | Representation |
---|---|
bin | 1101110110111… |
… | …0001111010101 |
3 | 11001100222001220 |
4 | 3131232033111 |
5 | 104334420341 |
6 | 5433440553 |
7 | 1304016312 |
oct | 335561725 |
9 | 131328056 |
10 | 58123221 |
11 | 2a899922 |
12 | 17570159 |
13 | c070950 |
14 | 7a0dd09 |
15 | 5181a66 |
hex | 376e3d5 |
58123221 has 32 divisors (see below), whose sum is σ = 91445760. Its totient is φ = 32492544.
The previous prime is 58123207. The next prime is 58123249. The reversal of 58123221 is 12232185.
It is not a de Polignac number, because 58123221 - 214 = 58106837 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 58123191 and 58123200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (58123271) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17716 + ... + 20738.
It is an arithmetic number, because the mean of its divisors is an integer number (2857680).
Almost surely, 258123221 is an apocalyptic number.
58123221 is a gapful number since it is divisible by the number (51) formed by its first and last digit.
It is an amenable number.
58123221 is a deficient number, since it is larger than the sum of its proper divisors (33322539).
58123221 is a wasteful number, since it uses less digits than its factorization.
58123221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3085.
The product of its digits is 960, while the sum is 24.
The square root of 58123221 is about 7623.8586686795. The cubic root of 58123221 is about 387.3615927479.
The spelling of 58123221 in words is "fifty-eight million, one hundred twenty-three thousand, two hundred twenty-one".
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