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130613225 = 525224529
BaseRepresentation
bin1111100100011…
…11111111101001
3100002202211122212
413302033333221
5231414110400
620543254505
73144123401
oct762177751
9302684585
10130613225
1167800716
12378aa435
13210a1942
14134bd801
15b700335
hex7c8ffe9

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".

Divisors: 1 5 25 5224529 26122645 130613225