Base | Representation |
---|---|
bin | 111101000001000010… |
… | …0110010001111001111 |
3 | 110112012210112021210001 |
4 | 1322002010302033033 |
5 | 4121323003430221 |
6 | 140110035425131 |
7 | 12316035524605 |
oct | 1720204621717 |
9 | 415183467701 |
10 | 131031311311 |
11 | 5062a83962a |
12 | 2148a1551a7 |
13 | c482755804 |
14 | 64b0447875 |
15 | 361d67c391 |
hex | 1e821323cf |
131031311311 has 8 divisors (see below), whose sum is σ = 131203497600. Its totient is φ = 130859233752.
The previous prime is 131031311287. The next prime is 131031311339. The reversal of 131031311311 is 113113130131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 131031311311 - 211 = 131031309263 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131031311381) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2541556 + ... + 2592598.
It is an arithmetic number, because the mean of its divisors is an integer number (16400437200).
Almost surely, 2131031311311 is an apocalyptic number.
131031311311 is a deficient number, since it is larger than the sum of its proper divisors (172186289).
131031311311 is a wasteful number, since it uses less digits than its factorization.
131031311311 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 54365.
The product of its (nonzero) digits is 81, while the sum is 19.
Adding to 131031311311 its reverse (113113130131), we get a palindrome (244144441442).
The spelling of 131031311311 in words is "one hundred thirty-one billion, thirty-one million, three hundred eleven thousand, three hundred eleven".
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