Base | Representation |
---|---|
bin | 11000011101010101… |
… | …11010011010010100 |
3 | 1020220010100112212101 |
4 | 30032222322122110 |
5 | 203343021012322 |
6 | 10010551331444 |
7 | 643253634514 |
oct | 141652723224 |
9 | 36803315771 |
10 | 13131032212 |
11 | 5629141941 |
12 | 2665680b84 |
13 | 131358c25c |
14 | 8c7d17844 |
15 | 51cbd6327 |
hex | 30eaba694 |
13131032212 has 48 divisors (see below), whose sum is σ = 24474441600. Its totient is φ = 6150932480.
The previous prime is 13131032191. The next prime is 13131032219. The reversal of 13131032212 is 21223013131.
13131032212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×131310322122 (a number of 21 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 13131032212.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13131032219) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1520964 + ... + 1529572.
It is an arithmetic number, because the mean of its divisors is an integer number (509884200).
Almost surely, 213131032212 is an apocalyptic number.
It is an amenable number.
13131032212 is a deficient number, since it is larger than the sum of its proper divisors (11343409388).
13131032212 is a wasteful number, since it uses less digits than its factorization.
13131032212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8976 (or 8974 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 13131032212 its reverse (21223013131), we get a palindrome (34354045343).
The spelling of 13131032212 in words is "thirteen billion, one hundred thirty-one million, thirty-two thousand, two hundred twelve".
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