Base | Representation |
---|---|
bin | 1111100100011… |
… | …11111111101001 |
3 | 100002202211122212 |
4 | 13302033333221 |
5 | 231414110400 |
6 | 20543254505 |
7 | 3144123401 |
oct | 762177751 |
9 | 302684585 |
10 | 130613225 |
11 | 67800716 |
12 | 378aa435 |
13 | 210a1942 |
14 | 134bd801 |
15 | b700335 |
hex | 7c8ffe9 |
130613225 has 6 divisors (see below), whose sum is σ = 161960430. Its totient is φ = 104490560.
The previous prime is 130613221. The next prime is 130613267. The reversal of 130613225 is 522316031.
It can be written as a sum of positive squares in 3 ways, for example, as 4343056 + 126270169 = 2084^2 + 11237^2 .
It is not a de Polignac number, because 130613225 - 22 = 130613221 is a prime.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 130613225.
It is not an unprimeable number, because it can be changed into a prime (130613221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2612240 + ... + 2612289.
It is an arithmetic number, because the mean of its divisors is an integer number (26993405).
Almost surely, 2130613225 is an apocalyptic number.
It is an amenable number.
130613225 is a deficient number, since it is larger than the sum of its proper divisors (31347205).
130613225 is an equidigital number, since it uses as much as digits as its factorization.
130613225 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5224539 (or 5224534 counting only the distinct ones).
The product of its (nonzero) digits is 1080, while the sum is 23.
The square root of 130613225 is about 11428.6143079553. The cubic root of 130613225 is about 507.3749843732.
Adding to 130613225 its reverse (522316031), we get a palindrome (652929256).
The spelling of 130613225 in words is "one hundred thirty million, six hundred thirteen thousand, two hundred twenty-five".
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