Base | Representation |
---|---|
bin | 1101011101000001110… |
… | …0001010100110000010 |
3 | 211002120212110100010110 |
4 | 3113100130022212002 |
5 | 12241323324423132 |
6 | 254102500412150 |
7 | 22461424141221 |
oct | 3272034124602 |
9 | 732525410113 |
10 | 231130311042 |
11 | 8a027042694 |
12 | 389650a7056 |
13 | 18a45918677 |
14 | b2886b8cb8 |
15 | 602b4201cc |
hex | 35d070a982 |
231130311042 has 8 divisors (see below), whose sum is σ = 462260622096. Its totient is φ = 77043437012.
The previous prime is 231130311017. The next prime is 231130311053. The reversal of 231130311042 is 240113031132.
It is a sphenic number, since it is the product of 3 distinct primes.
231130311042 is an admirable number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19260859248 + ... + 19260859259.
It is an arithmetic number, because the mean of its divisors is an integer number (57782577762).
Almost surely, 2231130311042 is an apocalyptic number.
231130311042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
231130311042 is a wasteful number, since it uses less digits than its factorization.
231130311042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38521718512.
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 231130311042 its reverse (240113031132), we get a palindrome (471243342174).
The spelling of 231130311042 in words is "two hundred thirty-one billion, one hundred thirty million, three hundred eleven thousand, forty-two".
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