Base | Representation |
---|---|
bin | 11000011101100101… |
… | …11010101001001000 |
3 | 1020220021022010220210 |
4 | 30032302322221020 |
5 | 203344040132222 |
6 | 10011104321120 |
7 | 643310523441 |
oct | 141662725110 |
9 | 36807263823 |
10 | 13133130312 |
11 | 562a345205 |
12 | 26663131a0 |
13 | 1313b45233 |
14 | 8c83022c8 |
15 | 51ce9cd0c |
hex | 30ecbaa48 |
13133130312 has 32 divisors (see below), whose sum is σ = 33171314400. Its totient is φ = 4332578304.
The previous prime is 13133130301. The next prime is 13133130317. The reversal of 13133130312 is 21303133131.
It is a super-2 number, since 2×131331303122 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (13133130317) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2818362 + ... + 2823017.
It is an arithmetic number, because the mean of its divisors is an integer number (1036603575).
Almost surely, 213133130312 is an apocalyptic number.
13133130312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
13133130312 is an abundant number, since it is smaller than the sum of its proper divisors (20038184088).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13133130312 is a wasteful number, since it uses less digits than its factorization.
13133130312 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5641485 (or 5641481 counting only the distinct ones).
The product of its (nonzero) digits is 486, while the sum is 21.
Adding to 13133130312 its reverse (21303133131), we get a palindrome (34436263443).
The spelling of 13133130312 in words is "thirteen billion, one hundred thirty-three million, one hundred thirty thousand, three hundred twelve".
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