Base | Representation |
---|---|
bin | 1111100000000… |
… | …00010011011001 |
3 | 100001122221022100 |
4 | 13300000103121 |
5 | 231241242130 |
6 | 20522514013 |
7 | 3136122441 |
oct | 760002331 |
9 | 301587270 |
10 | 130024665 |
11 | 67439501 |
12 | 37665909 |
13 | 20c26a94 |
14 | 133a9121 |
15 | b635c60 |
hex | 7c004d9 |
130024665 has 12 divisors (see below), whose sum is σ = 225376164. Its totient is φ = 69346464.
The previous prime is 130024663. The next prime is 130024669. The reversal of 130024665 is 566420031.
It can be written as a sum of positive squares in 2 ways, for example, as 20466576 + 109558089 = 4524^2 + 10467^2 .
It is not a de Polignac number, because 130024665 - 21 = 130024663 is a prime.
It is not an unprimeable number, because it can be changed into a prime (130024663) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1444674 + ... + 1444763.
It is an arithmetic number, because the mean of its divisors is an integer number (18781347).
Almost surely, 2130024665 is an apocalyptic number.
130024665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
130024665 is a deficient number, since it is larger than the sum of its proper divisors (95351499).
130024665 is a wasteful number, since it uses less digits than its factorization.
130024665 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2889448 (or 2889445 counting only the distinct ones).
The product of its (nonzero) digits is 4320, while the sum is 27.
The square root of 130024665 is about 11402.8358314938. The cubic root of 130024665 is about 506.6117378029.
Adding to 130024665 its reverse (566420031), we get a palindrome (696444696).
The spelling of 130024665 in words is "one hundred thirty million, twenty-four thousand, six hundred sixty-five".
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