Base | Representation |
---|---|
bin | 110100100100110101101110… |
… | …101111110001010011011111 |
3 | 1010022201101002010112022200100 |
4 | 310210311232233301103133 |
5 | 220301433031124044411 |
6 | 2135441333505432143 |
7 | 66463550156225034 |
oct | 6444655657612337 |
9 | 1108641063468610 |
10 | 231230012331231 |
11 | 6774a108897121 |
12 | 21b25b1333b653 |
13 | 9c03b86aa78b4 |
14 | 411584143338b |
15 | 1baec537b6456 |
hex | d24d6ebf14df |
231230012331231 has 6 divisors (see below), whose sum is σ = 333998906700680. Its totient is φ = 154153341554148.
The previous prime is 231230012331211. The next prime is 231230012331287. The reversal of 231230012331231 is 132133210032132.
231230012331231 is a `hidden beast` number, since 2 + 3 + 1 + 2 + 300 + 1 + 2 + 331 + 23 + 1 = 666.
It is not a de Polignac number, because 231230012331231 - 27 = 231230012331103 is a prime.
It is a super-2 number, since 2×2312300123312312 (a number of 30 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 231230012331195 and 231230012331204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231230012331211) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12846111796171 + ... + 12846111796188.
Almost surely, 2231230012331231 is an apocalyptic number.
231230012331231 is a deficient number, since it is larger than the sum of its proper divisors (102768894369449).
231230012331231 is a wasteful number, since it uses less digits than its factorization.
231230012331231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25692223592365 (or 25692223592362 counting only the distinct ones).
The product of its (nonzero) digits is 3888, while the sum is 27.
Adding to 231230012331231 its reverse (132133210032132), we get a palindrome (363363222363363).
The spelling of 231230012331231 in words is "two hundred thirty-one trillion, two hundred thirty billion, twelve million, three hundred thirty-one thousand, two hundred thirty-one".
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