Base | Representation |
---|---|
bin | 110100100100110101110101… |
… | …010110010111101111010111 |
3 | 1010022201101100211222122021210 |
4 | 310210311311112113233113 |
5 | 220301433243004112211 |
6 | 2135441352504112503 |
7 | 66463553002655151 |
oct | 6444656526275727 |
9 | 1108641324878253 |
10 | 231230123113431 |
11 | 6774a165382462 |
12 | 21b25b44465733 |
13 | 9c03ba3a24cb0 |
14 | 411585202dad1 |
15 | 1baec5d39a9a6 |
hex | d24d75597bd7 |
231230123113431 has 8 divisors (see below), whose sum is σ = 332022740880880. Its totient is φ = 142295460377472.
The previous prime is 231230123113427. The next prime is 231230123113573. The reversal of 231230123113431 is 134311321032132.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 231230123113431 - 22 = 231230123113427 is a prime.
It is a super-2 number, since 2×2312301231134312 (a number of 30 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231230123113411) 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 7 ways as a sum of consecutive naturals, for example, 2964488757826 + ... + 2964488757903.
It is an arithmetic number, because the mean of its divisors is an integer number (41502842610110).
Almost surely, 2231230123113431 is an apocalyptic number.
231230123113431 is a deficient number, since it is larger than the sum of its proper divisors (100792617767449).
231230123113431 is a wasteful number, since it uses less digits than its factorization.
231230123113431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5928977515745.
The product of its (nonzero) digits is 7776, while the sum is 30.
Adding to 231230123113431 its reverse (134311321032132), we get a palindrome (365541444145563).
The spelling of 231230123113431 in words is "two hundred thirty-one trillion, two hundred thirty billion, one hundred twenty-three million, one hundred thirteen thousand, four hundred thirty-one".
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