Base | Representation |
---|---|
bin | 11001000001000111… |
… | …01100011110111100 |
3 | 1021200001001002200220 |
4 | 30200203230132330 |
5 | 210001332130134 |
6 | 10100431421340 |
7 | 653556502353 |
oct | 144043543674 |
9 | 37601032626 |
10 | 13431130044 |
11 | 5772582882 |
12 | 272a084850 |
13 | 13607c2737 |
14 | 915b1499a |
15 | 539214149 |
hex | 3208ec7bc |
13431130044 has 24 divisors (see below), whose sum is σ = 31930612560. Its totient is φ = 4392570624.
The previous prime is 13431130019. The next prime is 13431130049. The reversal of 13431130044 is 44003113431.
13431130044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 13431129996 and 13431130023.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13431130049) 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, 10558429 + ... + 10559700.
It is an arithmetic number, because the mean of its divisors is an integer number (1330442190).
Almost surely, 213431130044 is an apocalyptic number.
It is an amenable number.
13431130044 is an abundant number, since it is smaller than the sum of its proper divisors (18499482516).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13431130044 is a wasteful number, since it uses less digits than its factorization.
13431130044 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21118189 (or 21118187 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 24.
Adding to 13431130044 its reverse (44003113431), we get a palindrome (57434243475).
The spelling of 13431130044 in words is "thirteen billion, four hundred thirty-one million, one hundred thirty thousand, forty-four".
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