| Base | Representation |
|---|---|
| bin | 1101011100100101101… |
| … | …1000000000001000000 |
| 3 | 211002021122220020000000 |
| 4 | 3113021123000001000 |
| 5 | 12241103204040211 |
| 6 | 254043053000000 |
| 7 | 22455464255400 |
| oct | 3271133000100 |
| 9 | 732248806000 |
| 10 | 231012565056 |
| 11 | 89a76630359 |
| 12 | 38931783000 |
| 13 | 18a274006a0 |
| 14 | b276bc8800 |
| 15 | 6020e12656 |
| hex | 35c96c0040 |
231012565056 has 672 divisors, whose sum is σ = 861619368960. Its totient is φ = 60902876160.
The previous prime is 231012565033. The next prime is 231012565067. The reversal of 231012565056 is 650565210132.
231012565056 is a `hidden beast` number, since 2 + 31 + 0 + 12 + 565 + 0 + 56 = 666.
It is a tau number, because it is divible by the number of its divisors (672).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a self number, because there is not a number n which added to its sum of digits gives 231012565056.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 89158321 + ... + 89160911.
It is an arithmetic number, because the mean of its divisors is an integer number (1282171680).
Almost surely, 2231012565056 is an apocalyptic number.
231012565056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 231012565056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430809684480).
231012565056 is an abundant number, since it is smaller than the sum of its proper divisors (630606803904).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
231012565056 is an equidigital number, since it uses as much as digits as its factorization.
231012565056 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2651 (or 2616 counting only the distinct ones).
The product of its (nonzero) digits is 54000, while the sum is 36.
Adding to 231012565056 its reverse (650565210132), we get a palindrome (881577775188).
The spelling of 231012565056 in words is "two hundred thirty-one billion, twelve million, five hundred sixty-five thousand, fifty-six".
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