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130395505 = 526079101
BaseRepresentation
bin1111100010110…
…10110101110001
3100002100210000011
413301122311301
5231340124010
620534454521
73142225552
oct761326561
9302323004
10130395505
1167672089
1237804441
1321026806
1413464329
15b6aaa8a
hex7c5ad71

130395505 has 4 divisors (see below), whose sum is σ = 156474612. Its totient is φ = 104316400.

The previous prime is 130395497. The next prime is 130395527. The reversal of 130395505 is 505593031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33097009 + 97298496 = 5753^2 + 9864^2 .

It is not a de Polignac number, because 130395505 - 23 = 130395497 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13039546 + ... + 13039555.

It is an arithmetic number, because the mean of its divisors is an integer number (39118653).

Almost surely, 2130395505 is an apocalyptic number.

It is an amenable number.

130395505 is a deficient number, since it is larger than the sum of its proper divisors (26079107).

130395505 is an equidigital number, since it uses as much as digits as its factorization.

130395505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26079106.

The product of its (nonzero) digits is 10125, while the sum is 31.

The square root of 130395505 is about 11419.0851209718. The cubic root of 130395505 is about 507.0929120763.

The spelling of 130395505 in words is "one hundred thirty million, three hundred ninety-five thousand, five hundred five".

Divisors: 1 5 26079101 130395505