Base | Representation |
---|---|
bin | 1111100001101… |
… | …01010001001001 |
3 | 100002001221220022 |
4 | 13300311101021 |
5 | 231320212414 |
6 | 20531310225 |
7 | 3141015101 |
oct | 760652111 |
9 | 302057808 |
10 | 130241609 |
11 | 675774a3 |
12 | 3774b375 |
13 | 20ca1754 |
14 | 13424201 |
15 | b67a18e |
hex | 7c35449 |
130241609 has 4 divisors (see below), whose sum is σ = 131584404. Its totient is φ = 128898816.
The previous prime is 130241603. The next prime is 130241623. The reversal of 130241609 is 906142031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 906142031 = 1039 ⋅872129.
It can be written as a sum of positive squares in 2 ways, for example, as 20976400 + 109265209 = 4580^2 + 10453^2 .
It is a cyclic number.
It is not a de Polignac number, because 130241609 - 216 = 130176073 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130241603) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671252 + ... + 671445.
It is an arithmetic number, because the mean of its divisors is an integer number (32896101).
Almost surely, 2130241609 is an apocalyptic number.
It is an amenable number.
130241609 is a deficient number, since it is larger than the sum of its proper divisors (1342795).
130241609 is an equidigital number, since it uses as much as digits as its factorization.
130241609 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1342794.
The product of its (nonzero) digits is 1296, while the sum is 26.
The square root of 130241609 is about 11412.3445882080. The cubic root of 130241609 is about 506.8933390099.
The spelling of 130241609 in words is "one hundred thirty million, two hundred forty-one thousand, six hundred nine".
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