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130135045 = 5101325693
BaseRepresentation
bin1111100000110…
…11010000000101
3100001212112201111
413300123100011
5231303310140
620525125021
73140062315
oct760332005
9301775644
10130135045
1167504427
12376b9771
1320c650b1
14133d7445
15b6587ea
hex7c1b405

130135045 has 8 divisors (see below), whose sum is σ = 156322296. Its totient is φ = 104001216.

The previous prime is 130135043. The next prime is 130135069. The reversal of 130135045 is 540531031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3932289 + 126202756 = 1983^2 + 11234^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130135045 - 21 = 130135043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130135043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7782 + ... + 17911.

It is an arithmetic number, because the mean of its divisors is an integer number (19540287).

Almost surely, 2130135045 is an apocalyptic number.

It is an amenable number.

130135045 is a deficient number, since it is larger than the sum of its proper divisors (26187251).

130135045 is a wasteful number, since it uses less digits than its factorization.

130135045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26711.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 130135045 is about 11407.6748288159. The cubic root of 130135045 is about 506.7550541687.

Adding to 130135045 its reverse (540531031), we get a palindrome (670666076).

The spelling of 130135045 in words is "one hundred thirty million, one hundred thirty-five thousand, forty-five".

Divisors: 1 5 1013 5065 25693 128465 26027009 130135045