Base | Representation |
---|---|
bin | 101110010001… |
… | …100011011011 |
3 | 211211021221122 |
4 | 232101203123 |
5 | 11101134043 |
6 | 1111555455 |
7 | 205051646 |
oct | 56214333 |
9 | 24737848 |
10 | 12130523 |
11 | 6935929 |
12 | 408bb8b |
13 | 2689532 |
14 | 187aa5d |
15 | 10e9368 |
hex | b918db |
12130523 has 2 divisors, whose sum is σ = 12130524. Its totient is φ = 12130522.
The previous prime is 12130507. The next prime is 12130541. The reversal of 12130523 is 32503121.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 12130523 - 24 = 12130507 is a prime.
It is not a weakly prime, because it can be changed into another prime (12130553) 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 as a sum of consecutive naturals, namely, 6065261 + 6065262.
It is an arithmetic number, because the mean of its divisors is an integer number (6065262).
Almost surely, 212130523 is an apocalyptic number.
12130523 is a deficient number, since it is larger than the sum of its proper divisors (1).
12130523 is an equidigital number, since it uses as much as digits as its factorization.
12130523 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 180, while the sum is 17.
The square root of 12130523 is about 3482.8900355883. The cubic root of 12130523 is about 229.7699211477.
Adding to 12130523 its reverse (32503121), we get a palindrome (44633644).
The spelling of 12130523 in words is "twelve million, one hundred thirty thousand, five hundred twenty-three".
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