Base | Representation |
---|---|
bin | 11101110010110000001001… |
… | …100110101110011111111010 |
3 | 122011221102222022110101200010 |
4 | 131302300021212232133322 |
5 | 114133303013443210432 |
6 | 1142402453211522350 |
7 | 36412451624133441 |
oct | 3562601146563772 |
9 | 564842868411603 |
10 | 131031023413242 |
11 | 38828a43821717 |
12 | 128428347593b6 |
13 | 5816231c5cb84 |
14 | 244dd14933d58 |
15 | 102363e6e23cc |
hex | 772c099ae7fa |
131031023413242 has 32 divisors (see below), whose sum is σ = 263879462219904. Its totient is φ = 43374284856000.
The previous prime is 131031023413097. The next prime is 131031023413247. The reversal of 131031023413242 is 242314320130131.
It is not an unprimeable number, because it can be changed into a prime (131031023413247) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19532233 + ... + 25368684.
It is an arithmetic number, because the mean of its divisors is an integer number (8246233194372).
Almost surely, 2131031023413242 is an apocalyptic number.
131031023413242 is an abundant number, since it is smaller than the sum of its proper divisors (132848438806662).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131031023413242 is a wasteful number, since it uses less digits than its factorization.
131031023413242 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44904294.
The product of its (nonzero) digits is 10368, while the sum is 30.
Adding to 131031023413242 its reverse (242314320130131), we get a palindrome (373345343543373).
The spelling of 131031023413242 in words is "one hundred thirty-one trillion, thirty-one billion, twenty-three million, four hundred thirteen thousand, two hundred forty-two".
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