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2130533165 = 53881109793
BaseRepresentation
bin111111011111101…
…0101101100101101
312111110222022001202
41332333111230231
513330404030130
6551224415245
7103540142645
oct17677255455
95443868052
102130533165
119a36a3112
124b5617525
1327c51b717
14162d57525
15c7099145
hex7efd5b2d

2130533165 has 8 divisors (see below), whose sum is σ = 2557321848. Its totient is φ = 1703971840.

The previous prime is 2130533159. The next prime is 2130533173. The reversal of 2130533165 is 5613350312.

It can be written as a sum of positive squares in 4 ways, for example, as 755755081 + 1374778084 = 27491^2 + 37078^2 .

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

It is not a de Polignac number, because 2130533165 - 26 = 2130533101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35492 + ... + 74301.

It is an arithmetic number, because the mean of its divisors is an integer number (319665231).

Almost surely, 22130533165 is an apocalyptic number.

It is an amenable number.

2130533165 is a deficient number, since it is larger than the sum of its proper divisors (426788683).

2130533165 is a wasteful number, since it uses less digits than its factorization.

2130533165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113679.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 2130533165 is about 46157.6988702860. The cubic root of 2130533165 is about 1286.7556968636.

Adding to 2130533165 its reverse (5613350312), we get a palindrome (7743883477).

The spelling of 2130533165 in words is "two billion, one hundred thirty million, five hundred thirty-three thousand, one hundred sixty-five".

Divisors: 1 5 3881 19405 109793 548965 426106633 2130533165