Base | Representation |
---|---|
bin | 111101001101010111… |
… | …1000110011001100101 |
3 | 110120021122001202100002 |
4 | 1322122233012121211 |
5 | 4123144413312000 |
6 | 140215055431045 |
7 | 12332221356614 |
oct | 1723257063145 |
9 | 416248052302 |
10 | 131445057125 |
11 | 50822342a18 |
12 | 21584825485 |
13 | c51a39a915 |
14 | 650d38987b |
15 | 3644b588d5 |
hex | 1e9abc6665 |
131445057125 has 8 divisors (see below), whose sum is σ = 164043431448. Its totient is φ = 105156045600.
The previous prime is 131445057089. The next prime is 131445057131. The reversal of 131445057125 is 521750544131.
It can be written as a sum of positive squares in 4 ways, for example, as 21975394081 + 109469663044 = 148241^2 + 330862^2 .
It is not a de Polignac number, because 131445057125 - 224 = 131428279909 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525780104 + ... + 525780353.
It is an arithmetic number, because the mean of its divisors is an integer number (20505428931).
Almost surely, 2131445057125 is an apocalyptic number.
It is an amenable number.
131445057125 is a deficient number, since it is larger than the sum of its proper divisors (32598374323).
131445057125 is an equidigital number, since it uses as much as digits as its factorization.
131445057125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1051560472 (or 1051560462 counting only the distinct ones).
The product of its (nonzero) digits is 84000, while the sum is 38.
The spelling of 131445057125 in words is "one hundred thirty-one billion, four hundred forty-five million, fifty-seven thousand, one hundred twenty-five".
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