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130522356 = 22323625621
BaseRepresentation
bin1111100011110…
…01110011110100
3100002121020000100
413301321303310
5231403203411
620541314100
73143264436
oct761716364
9302536010
10130522356
1167749418
1237865930
132106c483
1413498656
15b6d3456
hex7c79cf4

130522356 has 18 divisors (see below), whose sum is σ = 329931602. Its totient is φ = 43507440.

The previous prime is 130522351. The next prime is 130522363. The reversal of 130522356 is 653225031.

130522356 is a `hidden beast` number, since 1 + 305 + 2 + 2 + 356 = 666.

It can be written as a sum of positive squares in only one way, i.e., 129276900 + 1245456 = 11370^2 + 1116^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130522351) by changing a digit.

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, 1812775 + ... + 1812846.

Almost surely, 2130522356 is an apocalyptic number.

It is an amenable number.

130522356 is an abundant number, since it is smaller than the sum of its proper divisors (199409246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130522356 is a wasteful number, since it uses less digits than its factorization.

130522356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625631 (or 3625626 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 130522356 is about 11424.6381124305. The cubic root of 130522356 is about 507.2572950315.

Adding to 130522356 its reverse (653225031), we get a palindrome (783747387).

The spelling of 130522356 in words is "one hundred thirty million, five hundred twenty-two thousand, three hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 36 3625621 7251242 10876863 14502484 21753726 32630589 43507452 65261178 130522356