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2014665181 is a prime number
BaseRepresentation
bin111100000010101…
…0101100111011101
312012101221121001221
41320011111213131
513111223241211
6531525133341
7100632241264
oct17005254735
95171847057
102014665181
11944253851
1248285a251
13261510499
141517d55db
15bbd0cc71
hex781559dd

2014665181 has 2 divisors, whose sum is σ = 2014665182. Its totient is φ = 2014665180.

The previous prime is 2014665161. The next prime is 2014665193. The reversal of 2014665181 is 1815664102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1515544900 + 499120281 = 38930^2 + 22341^2 .

It is a cyclic number.

It is not a de Polignac number, because 2014665181 - 29 = 2014664669 is a prime.

It is a super-2 number, since 2×20146651812 = 8117751583067525522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2014665161) 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 as a sum of consecutive naturals, namely, 1007332590 + 1007332591.

It is an arithmetic number, because the mean of its divisors is an integer number (1007332591).

Almost surely, 22014665181 is an apocalyptic number.

It is an amenable number.

2014665181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2014665181 is an equidigital number, since it uses as much as digits as its factorization.

2014665181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 2014665181 is about 44885.0217890111. The cubic root of 2014665181 is about 1262.9930485562.

The spelling of 2014665181 in words is "two billion, fourteen million, six hundred sixty-five thousand, one hundred eighty-one".