Base | Representation |
---|---|
bin | 1111100001011… |
… | …10111000000001 |
3 | 100002000121222112 |
4 | 13300232320001 |
5 | 231313343200 |
6 | 20530545105 |
7 | 3140545544 |
oct | 760567001 |
9 | 302017875 |
10 | 130215425 |
11 | 6755985a |
12 | 37738195 |
13 | 20c92862 |
14 | 1341885b |
15 | b672535 |
hex | 7c2ee01 |
130215425 has 6 divisors (see below), whose sum is σ = 161467158. Its totient is φ = 104172320.
The previous prime is 130215413. The next prime is 130215431. The reversal of 130215425 is 524512031.
It can be written as a sum of positive squares in 3 ways, for example, as 7360369 + 122855056 = 2713^2 + 11084^2 .
It is not a de Polignac number, because 130215425 - 24 = 130215409 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 130215425.
It is an unprimeable number.
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 5 ways as a sum of consecutive naturals, for example, 2604284 + ... + 2604333.
It is an arithmetic number, because the mean of its divisors is an integer number (26911193).
Almost surely, 2130215425 is an apocalyptic number.
It is an amenable number.
130215425 is a deficient number, since it is larger than the sum of its proper divisors (31251733).
130215425 is an equidigital number, since it uses as much as digits as its factorization.
130215425 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5208627 (or 5208622 counting only the distinct ones).
The product of its (nonzero) digits is 1200, while the sum is 23.
The square root of 130215425 is about 11411.1973517243. The cubic root of 130215425 is about 506.8593678266.
Adding to 130215425 its reverse (524512031), we get a palindrome (654727456).
The spelling of 130215425 in words is "one hundred thirty million, two hundred fifteen thousand, four hundred twenty-five".
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