Base | Representation |
---|---|
bin | 1101111000110… |
… | …0001010110001 |
3 | 11001121012020012 |
4 | 3132030022301 |
5 | 104402331214 |
6 | 5440224305 |
7 | 1305036566 |
oct | 336141261 |
9 | 131535205 |
10 | 58245809 |
11 | 2a972a36 |
12 | 1760b095 |
13 | c0b469b |
14 | 7a4286d |
15 | 51a803e |
hex | 378c2b1 |
58245809 has 4 divisors (see below), whose sum is σ = 58306404. Its totient is φ = 58185216.
The previous prime is 58245797. The next prime is 58245823. The reversal of 58245809 is 90854285.
58245809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90854285 = 5 ⋅18170857.
It can be written as a sum of positive squares in 2 ways, for example, as 56670784 + 1575025 = 7528^2 + 1255^2 .
It is a cyclic number.
It is not a de Polignac number, because 58245809 - 24 = 58245793 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (58245829) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28832 + ... + 30785.
It is an arithmetic number, because the mean of its divisors is an integer number (14576601).
Almost surely, 258245809 is an apocalyptic number.
It is an amenable number.
58245809 is a deficient number, since it is larger than the sum of its proper divisors (60595).
58245809 is an equidigital number, since it uses as much as digits as its factorization.
58245809 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 60594.
The product of its (nonzero) digits is 115200, while the sum is 41.
The square root of 58245809 is about 7631.8941947593. The cubic root of 58245809 is about 387.6337303258.
The spelling of 58245809 in words is "fifty-eight million, two hundred forty-five thousand, eight hundred nine".
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