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2131300013 = 17125370589
BaseRepresentation
bin111111100001001…
…0000111010101101
312111112102020222112
41333002100322231
513331103100023
6551253053405
7103546515443
oct17702207255
95445366875
102131300013
119a4077277
124b5927265
1327c72978b
141630b6b93
15c719b478
hex7f090ead

2131300013 has 4 divisors (see below), whose sum is σ = 2256670620. Its totient is φ = 2005929408.

The previous prime is 2131300009. The next prime is 2131300021. The reversal of 2131300013 is 3100031312.

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 964599364 + 1166700649 = 31058^2 + 34157^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131300013 - 22 = 2131300009 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 (2131300513) 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 3 ways as a sum of consecutive naturals, for example, 62685278 + ... + 62685311.

It is an arithmetic number, because the mean of its divisors is an integer number (564167655).

Almost surely, 22131300013 is an apocalyptic number.

It is an amenable number.

2131300013 is a deficient number, since it is larger than the sum of its proper divisors (125370607).

2131300013 is a wasteful number, since it uses less digits than its factorization.

2131300013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125370606.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 2131300013 is about 46166.0049495297. The cubic root of 2131300013 is about 1286.9100600507.

Adding to 2131300013 its reverse (3100031312), we get a palindrome (5231331325).

The spelling of 2131300013 in words is "two billion, one hundred thirty-one million, three hundred thousand, thirteen".

Divisors: 1 17 125370589 2131300013