Base | Representation |
---|---|
bin | 11000011101010110… |
… | …10010010101111000 |
3 | 1020220010112112022202 |
4 | 30032223102111320 |
5 | 203343032131412 |
6 | 10010553405332 |
7 | 643254523343 |
oct | 141653222570 |
9 | 36803475282 |
10 | 13131130232 |
11 | 56291a9550 |
12 | 2665709848 |
13 | 13135c4a5c |
14 | 8c7d4145a |
15 | 51cc053c2 |
hex | 30ead2578 |
13131130232 has 32 divisors (see below), whose sum is σ = 26873262000. Its totient is φ = 5965555200.
The previous prime is 13131130189. The next prime is 13131130237. The reversal of 13131130232 is 23203113131.
13131130232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13131130237) 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 7 ways as a sum of consecutive naturals, for example, 133232 + ... + 209792.
Almost surely, 213131130232 is an apocalyptic number.
It is an amenable number.
13131130232 is an abundant number, since it is smaller than the sum of its proper divisors (13742131768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13131130232 is a wasteful number, since it uses less digits than its factorization.
13131130232 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 78527 (or 78523 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 20.
Adding to 13131130232 its reverse (23203113131), we get a palindrome (36334243363).
The spelling of 13131130232 in words is "thirteen billion, one hundred thirty-one million, one hundred thirty thousand, two hundred thirty-two".
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