Base | Representation |
---|---|
bin | 1111100010011… |
… | …00000110101001 |
3 | 100002020201012121 |
4 | 13301030012221 |
5 | 231331211040 |
6 | 20533311241 |
7 | 3141554563 |
oct | 761140651 |
9 | 302221177 |
10 | 130335145 |
11 | 676307a6 |
12 | 37795521 |
13 | 210051b5 |
14 | 1344a333 |
15 | b697c4a |
hex | 7c4c1a9 |
130335145 has 4 divisors (see below), whose sum is σ = 156402180. Its totient is φ = 104268112.
The previous prime is 130335143. The next prime is 130335203. The reversal of 130335145 is 541533031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541533031 = 13 ⋅41656387.
It can be written as a sum of positive squares in 2 ways, for example, as 35331136 + 95004009 = 5944^2 + 9747^2 .
It is a cyclic number.
It is not a de Polignac number, because 130335145 - 21 = 130335143 is a prime.
It is not an unprimeable number, because it can be changed into a prime (130335143) 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, 13033510 + ... + 13033519.
It is an arithmetic number, because the mean of its divisors is an integer number (39100545).
Almost surely, 2130335145 is an apocalyptic number.
It is an amenable number.
130335145 is a deficient number, since it is larger than the sum of its proper divisors (26067035).
130335145 is an equidigital number, since it uses as much as digits as its factorization.
130335145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26067034.
The product of its (nonzero) digits is 2700, while the sum is 25.
The square root of 130335145 is about 11416.4418712662. The cubic root of 130335145 is about 507.0146556666.
Adding to 130335145 its reverse (541533031), we get a palindrome (671868176).
The spelling of 130335145 in words is "one hundred thirty million, three hundred thirty-five thousand, one hundred forty-five".
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