Base | Representation |
---|---|
bin | 1111100010001… |
… | …00110011001001 |
3 | 100002012012011110 |
4 | 13301010303021 |
5 | 231324231400 |
6 | 20532520533 |
7 | 3141401421 |
oct | 761046311 |
9 | 302165143 |
10 | 130305225 |
11 | 67610276 |
12 | 37780149 |
13 | 20cc46ab |
14 | 1343d481 |
15 | b68de50 |
hex | 7c44cc9 |
130305225 has 12 divisors (see below), whose sum is σ = 215438096. Its totient is φ = 69496080.
The previous prime is 130305223. The next prime is 130305239. The reversal of 130305225 is 522503031.
It is not a de Polignac number, because 130305225 - 21 = 130305223 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130305223) 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 11 ways as a sum of consecutive naturals, for example, 868627 + ... + 868776.
Almost surely, 2130305225 is an apocalyptic number.
130305225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
130305225 is a deficient number, since it is larger than the sum of its proper divisors (85132871).
130305225 is a wasteful number, since it uses less digits than its factorization.
130305225 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1737416 (or 1737411 counting only the distinct ones).
The product of its (nonzero) digits is 900, while the sum is 21.
The square root of 130305225 is about 11415.1314052883. The cubic root of 130305225 is about 506.9758555935.
Adding to 130305225 its reverse (522503031), we get a palindrome (652808256).
The spelling of 130305225 in words is "one hundred thirty million, three hundred five thousand, two hundred twenty-five".
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