Base | Representation |
---|---|
bin | 1111101001110… |
… | …10010110100011 |
3 | 100011002021211210 |
4 | 13310322112203 |
5 | 232103423021 |
6 | 21010241203 |
7 | 3153060636 |
oct | 764722643 |
9 | 304067753 |
10 | 131311011 |
11 | 681379a7 |
12 | 37b86203 |
13 | 21287430 |
14 | 13621c1d |
15 | b7dbe76 |
hex | 7d3a5a3 |
131311011 has 16 divisors (see below), whose sum is σ = 188800416. Its totient is φ = 80699136.
The previous prime is 131311001. The next prime is 131311027. The reversal of 131311011 is 110113131.
It is not a de Polignac number, because 131311011 - 218 = 131048867 is a prime.
It is not an unprimeable number, because it can be changed into a prime (131311001) 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, 35401 + ... + 38933.
It is an arithmetic number, because the mean of its divisors is an integer number (11800026).
Almost surely, 2131311011 is an apocalyptic number.
131311011 is a deficient number, since it is larger than the sum of its proper divisors (57489405).
131311011 is a wasteful number, since it uses less digits than its factorization.
131311011 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4502.
The product of its (nonzero) digits is 9, while the sum is 12.
The square root of 131311011 is about 11459.1016663611. The cubic root of 131311011 is about 508.2769107910.
Adding to 131311011 its reverse (110113131), we get a palindrome (241424142).
The spelling of 131311011 in words is "one hundred thirty-one million, three hundred eleven thousand, eleven".
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