Base | Representation |
---|---|
bin | 111101001001111110… |
… | …0011101110011001010 |
3 | 110112222200200011102210 |
4 | 1322103330131303022 |
5 | 4122431231322310 |
6 | 140155505405550 |
7 | 12326336050434 |
oct | 1722374356312 |
9 | 415880604383 |
10 | 131331120330 |
11 | 50773aa2583 |
12 | 215526398b6 |
13 | c4cc8b76b7 |
14 | 64dc1ab654 |
15 | 3639b4e820 |
hex | 1e93f1dcca |
131331120330 has 64 divisors (see below), whose sum is σ = 328960051200. Its totient is φ = 33492714816.
The previous prime is 131331120311. The next prime is 131331120331. The reversal of 131331120330 is 33021133131.
131331120330 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 131331120297 and 131331120306.
It is not an unprimeable number, because it can be changed into a prime (131331120331) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4538889 + ... + 4567731.
It is an arithmetic number, because the mean of its divisors is an integer number (5140000800).
Almost surely, 2131331120330 is an apocalyptic number.
131331120330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131331120330 is an abundant number, since it is smaller than the sum of its proper divisors (197628930870).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131331120330 is a wasteful number, since it uses less digits than its factorization.
131331120330 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35475.
The product of its (nonzero) digits is 486, while the sum is 21.
Adding to 131331120330 its reverse (33021133131), we get a palindrome (164352253461).
The spelling of 131331120330 in words is "one hundred thirty-one billion, three hundred thirty-one million, one hundred twenty thousand, three hundred thirty".
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