Base | Representation |
---|---|
bin | 111101000000110001… |
… | …0011100101010001001 |
3 | 110112012011120222100002 |
4 | 1322001202130222021 |
5 | 4121313202410100 |
6 | 140105114452345 |
7 | 12315566155025 |
oct | 1720142345211 |
9 | 415164528302 |
10 | 131022310025 |
11 | 50625750852 |
12 | 214871340b5 |
13 | c4809236c9 |
14 | 64ad183385 |
15 | 361c9a02d5 |
hex | 1e8189ca89 |
131022310025 has 36 divisors (see below), whose sum is σ = 170124457692. Its totient is φ = 100091819520.
The previous prime is 131022309961. The next prime is 131022310051. The reversal of 131022310025 is 520013220131.
It can be written as a sum of positive squares in 6 ways, for example, as 26938000384 + 104084309641 = 164128^2 + 322621^2 .
It is not a de Polignac number, because 131022310025 - 26 = 131022309961 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 131022309979 and 131022310006.
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8151797 + ... + 8167853.
Almost surely, 2131022310025 is an apocalyptic number.
It is an amenable number.
131022310025 is a deficient number, since it is larger than the sum of its proper divisors (39102147667).
131022310025 is a wasteful number, since it uses less digits than its factorization.
131022310025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16730 (or 16702 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 20.
Adding to 131022310025 its reverse (520013220131), we get a palindrome (651035530156).
The spelling of 131022310025 in words is "one hundred thirty-one billion, twenty-two million, three hundred ten thousand, twenty-five".
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