Base | Representation |
---|---|
bin | 101111110010… |
… | …001010000101 |
3 | 212120101201211 |
4 | 233302022011 |
5 | 11201314323 |
6 | 1124251421 |
7 | 211320400 |
oct | 57621205 |
9 | 25511654 |
10 | 12526213 |
11 | 7086147 |
12 | 4240b71 |
13 | 279767b |
14 | 1940d37 |
15 | 117670d |
hex | bf2285 |
12526213 has 6 divisors (see below), whose sum is σ = 14571366. Its totient is φ = 10736712.
The previous prime is 12526183. The next prime is 12526219. The reversal of 12526213 is 31262521.
12526213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in only one way, i.e., 6385729 + 6140484 = 2527^2 + 2478^2 .
It is not a de Polignac number, because 12526213 - 25 = 12526181 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12526219) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 127770 + ... + 127867.
It is an arithmetic number, because the mean of its divisors is an integer number (2428561).
Almost surely, 212526213 is an apocalyptic number.
It is an amenable number.
12526213 is a deficient number, since it is larger than the sum of its proper divisors (2045153).
12526213 is an equidigital number, since it uses as much as digits as its factorization.
12526213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 255651 (or 255644 counting only the distinct ones).
The product of its digits is 720, while the sum is 22.
The square root of 12526213 is about 3539.2390425062. The cubic root of 12526213 is about 232.2415550381.
Adding to 12526213 its reverse (31262521), we get a palindrome (43788734).
The spelling of 12526213 in words is "twelve million, five hundred twenty-six thousand, two hundred thirteen".
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