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130445225 = 525217809
BaseRepresentation
bin1111100011001…
…10111110101001
3100002110022012122
413301212332221
5231343221400
620535521025
73142523531
oct761467651
9302408178
10130445225
11676a6479
1237829175
1321043331
14134784c1
15b6ba685
hex7c66fa9

130445225 has 6 divisors (see below), whose sum is σ = 161752110. Its totient is φ = 104356160.

The previous prime is 130445201. The next prime is 130445297. The reversal of 130445225 is 522544031.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 781456 + 129663769 = 884^2 + 11387^2 .

It is not a de Polignac number, because 130445225 - 214 = 130428841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130445194 and 130445203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2608880 + ... + 2608929.

It is an arithmetic number, because the mean of its divisors is an integer number (26958685).

Almost surely, 2130445225 is an apocalyptic number.

It is an amenable number.

130445225 is a deficient number, since it is larger than the sum of its proper divisors (31306885).

130445225 is an equidigital number, since it uses as much as digits as its factorization.

130445225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5217819 (or 5217814 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 130445225 is about 11421.2619705530. The cubic root of 130445225 is about 507.1573556468.

Adding to 130445225 its reverse (522544031), we get a palindrome (652989256).

The spelling of 130445225 in words is "one hundred thirty million, four hundred forty-five thousand, two hundred twenty-five".

Divisors: 1 5 25 5217809 26089045 130445225