Base | Representation |
---|---|
bin | 110100100111100000011100… |
… | …001101001010101001011100 |
3 | 1010100100220012112112200011100 |
4 | 310213200130031022221130 |
5 | 220312433430121401022 |
6 | 2140101450230553100 |
7 | 66513026402233005 |
oct | 6447403415125134 |
9 | 1110326175480140 |
10 | 231413311122012 |
11 | 6780a91a217678 |
12 | 21b55549808790 |
13 | 9c18248c99c46 |
14 | 412066d3b21ac |
15 | 1bb48d08d41ac |
hex | d2781c34aa5c |
231413311122012 has 36 divisors (see below), whose sum is σ = 584962252370496. Its totient is φ = 77137661314560.
The previous prime is 231413311121977. The next prime is 231413311122013. The reversal of 231413311122012 is 210221113314132.
231413311122012 is a `hidden beast` number, since 2 + 3 + 1 + 413 + 3 + 1 + 11 + 220 + 12 = 666.
It is a tau number, because it is divible by the number of its divisors (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231413311122013) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23672437 + ... + 31987667.
It is an arithmetic number, because the mean of its divisors is an integer number (16248951454736).
Almost surely, 2231413311122012 is an apocalyptic number.
It is an amenable number.
231413311122012 is an abundant number, since it is smaller than the sum of its proper divisors (353548941248484).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
231413311122012 is a wasteful number, since it uses less digits than its factorization.
231413311122012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9088298 (or 9088293 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 27.
Adding to 231413311122012 its reverse (210221113314132), we get a palindrome (441634424436144).
The spelling of 231413311122012 in words is "two hundred thirty-one trillion, four hundred thirteen billion, three hundred eleven million, one hundred twenty-two thousand, twelve".
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