Base | Representation |
---|---|
bin | 11000101001010000… |
… | …01100111110100011 |
3 | 1021011002102200111001 |
4 | 30110220030332203 |
5 | 204044113010443 |
6 | 10024521532431 |
7 | 645606342436 |
oct | 142450147643 |
9 | 37132380431 |
10 | 13230985123 |
11 | 567a600a54 |
12 | 2693044117 |
13 | 132b1b74a5 |
14 | 8d72d581d |
15 | 52687bd4d |
hex | 314a0cfa3 |
13230985123 has 4 divisors (see below), whose sum is σ = 13231502968. Its totient is φ = 13230467280.
The previous prime is 13230985121. The next prime is 13230985151. The reversal of 13230985123 is 32158903231.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 13230985123 - 21 = 13230985121 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13230985121) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218493 + ... + 272398.
It is an arithmetic number, because the mean of its divisors is an integer number (3307875742).
Almost surely, 213230985123 is an apocalyptic number.
13230985123 is a deficient number, since it is larger than the sum of its proper divisors (517845).
13230985123 is an equidigital number, since it uses as much as digits as its factorization.
13230985123 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 517844.
The product of its (nonzero) digits is 38880, while the sum is 37.
The spelling of 13230985123 in words is "thirteen billion, two hundred thirty million, nine hundred eighty-five thousand, one hundred twenty-three".
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