Base | Representation |
---|---|
bin | 10110111010010001… |
… | …11001100000000101 |
3 | 1011202012200100212221 |
4 | 23131020321200011 |
5 | 200142302011010 |
6 | 5352304212341 |
7 | 613543355422 |
oct | 133510714005 |
9 | 34665610787 |
10 | 12300032005 |
11 | 5242058108 |
12 | 247330a0b1 |
13 | 1210374061 |
14 | 8497dcd49 |
15 | 4bec88dda |
hex | 2dd239805 |
12300032005 has 8 divisors (see below), whose sum is σ = 14763276792. Its totient is φ = 9837866688.
The previous prime is 12300031999. The next prime is 12300032029. The reversal of 12300032005 is 50023000321.
It can be written as a sum of positive squares in 4 ways, for example, as 102596641 + 12197435364 = 10129^2 + 110442^2 .
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 12300032005 - 25 = 12300031973 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 12300032005.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244582 + ... + 290551.
It is an arithmetic number, because the mean of its divisors is an integer number (1845409599).
Almost surely, 212300032005 is an apocalyptic number.
It is an amenable number.
12300032005 is a deficient number, since it is larger than the sum of its proper divisors (2463244787).
12300032005 is an equidigital number, since it uses as much as digits as its factorization.
12300032005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 539735.
The product of its (nonzero) digits is 180, while the sum is 16.
Adding to 12300032005 its reverse (50023000321), we get a palindrome (62323032326).
The spelling of 12300032005 in words is "twelve billion, three hundred million, thirty-two thousand, five".
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