Base | Representation |
---|---|
bin | 11000101001001011… |
… | …01001011010001001 |
3 | 1021011001011122110001 |
4 | 30110211221122021 |
5 | 204043430041040 |
6 | 10024455323001 |
7 | 645600552235 |
oct | 142445513211 |
9 | 37131148401 |
10 | 13230315145 |
11 | 567a193653 |
12 | 2692980461 |
13 | 132b011558 |
14 | 8d719d5c5 |
15 | 52679859a |
hex | 314969689 |
13230315145 has 8 divisors (see below), whose sum is σ = 16305469704. Its totient is φ = 10298191104.
The previous prime is 13230315107. The next prime is 13230315173. The reversal of 13230315145 is 54151303231.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 1322267769 + 11908047376 = 36363^2 + 109124^2 .
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 13230315145 - 225 = 13196760713 is a prime.
It is a Duffinian 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, 35757424 + ... + 35757793.
It is an arithmetic number, because the mean of its divisors is an integer number (2038183713).
Almost surely, 213230315145 is an apocalyptic number.
It is an amenable number.
13230315145 is a deficient number, since it is larger than the sum of its proper divisors (3075154559).
13230315145 is an equidigital number, since it uses as much as digits as its factorization.
13230315145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 71515259.
The product of its (nonzero) digits is 5400, while the sum is 28.
Adding to 13230315145 its reverse (54151303231), we get a palindrome (67381618376).
The spelling of 13230315145 in words is "thirteen billion, two hundred thirty million, three hundred fifteen thousand, one hundred forty-five".
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