Base | Representation |
---|---|
bin | 101100000110… |
… | …1110011010101 |
3 | 1121111212211002 |
4 | 1120031303111 |
5 | 21410001310 |
6 | 2143353045 |
7 | 400363265 |
oct | 130156325 |
9 | 47455732 |
10 | 23125205 |
11 | 12065344 |
12 | 78b2785 |
13 | 4a38a6c |
14 | 30dd7a5 |
15 | 206bda5 |
hex | 160dcd5 |
23125205 has 8 divisors (see below), whose sum is σ = 27783000. Its totient is φ = 18478336.
The previous prime is 23125199. The next prime is 23125229. The reversal of 23125205 is 50252132.
It can be written as a sum of positive squares in 4 ways, for example, as 2093809 + 21031396 = 1447^2 + 4586^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 23125205 - 210 = 23124181 is a prime.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 3041 + ... + 7449.
It is an arithmetic number, because the mean of its divisors is an integer number (3472875).
Almost surely, 223125205 is an apocalyptic number.
It is an amenable number.
23125205 is a deficient number, since it is larger than the sum of its proper divisors (4657795).
23125205 is a wasteful number, since it uses less digits than its factorization.
23125205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5463.
The product of its (nonzero) digits is 600, while the sum is 20.
The square root of 23125205 is about 4808.8673302556. The cubic root of 23125205 is about 284.9018026323.
Adding to 23125205 its reverse (50252132), we get a palindrome (73377337).
The spelling of 23125205 in words is "twenty-three million, one hundred twenty-five thousand, two hundred five".
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