Base | Representation |
---|---|
bin | 111101000001000010… |
… | …0000100010101100101 |
3 | 110112012210011201212201 |
4 | 1322002010010111211 |
5 | 4121322431421201 |
6 | 140110031414501 |
7 | 12316034112511 |
oct | 1720204042545 |
9 | 415183151781 |
10 | 131031123301 |
11 | 5062a720351 |
12 | 2148a084431 |
13 | c4826bb070 |
14 | 64b03d9141 |
15 | 361d641801 |
hex | 1e82104565 |
131031123301 has 16 divisors (see below), whose sum is σ = 142135572096. Its totient is φ = 120075189696.
The previous prime is 131031123263. The next prime is 131031123343. The reversal of 131031123301 is 103321130131.
It is a cyclic number.
It is not a de Polignac number, because 131031123301 - 219 = 131030599013 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 (131031123101) 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, 1493416 + ... + 1578718.
It is an arithmetic number, because the mean of its divisors is an integer number (8883473256).
Almost surely, 2131031123301 is an apocalyptic number.
It is an amenable number.
131031123301 is a deficient number, since it is larger than the sum of its proper divisors (11104448795).
131031123301 is a wasteful number, since it uses less digits than its factorization.
131031123301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 86172.
The product of its (nonzero) digits is 162, while the sum is 19.
Adding to 131031123301 its reverse (103321130131), we get a palindrome (234352253432).
The spelling of 131031123301 in words is "one hundred thirty-one billion, thirty-one million, one hundred twenty-three thousand, three hundred one".
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