Base | Representation |
---|---|
bin | 1111101100100… |
… | …01010010110101 |
3 | 100011202101100012 |
4 | 13312101102311 |
5 | 232201322000 |
6 | 21022030005 |
7 | 3156103112 |
oct | 766212265 |
9 | 304671305 |
10 | 131667125 |
11 | 68360507 |
12 | 38118305 |
13 | 21380555 |
14 | 136b5909 |
15 | b85c735 |
hex | 7d914b5 |
131667125 has 16 divisors (see below), whose sum is σ = 173989296. Its totient is φ = 99136000.
The previous prime is 131667119. The next prime is 131667143. The reversal of 131667125 is 521766131.
It can be written as a sum of positive squares in 8 ways, for example, as 7612081 + 124055044 = 2759^2 + 11138^2 .
It is not a de Polignac number, because 131667125 - 212 = 131663029 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 131667091 and 131667100.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28856 + ... + 33105.
It is an arithmetic number, because the mean of its divisors is an integer number (10874331).
Almost surely, 2131667125 is an apocalyptic number.
It is an amenable number.
131667125 is a deficient number, since it is larger than the sum of its proper divisors (42322171).
131667125 is an equidigital number, since it uses as much as digits as its factorization.
131667125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 61993 (or 61983 counting only the distinct ones).
The product of its digits is 7560, while the sum is 32.
The square root of 131667125 is about 11474.6296236523. The cubic root of 131667125 is about 508.7359764882.
The spelling of 131667125 in words is "one hundred thirty-one million, six hundred sixty-seven thousand, one hundred twenty-five".
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