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14015405213 = 19801707813
BaseRepresentation
bin11010000110110001…
…00001110010011101
31100011202110100112222
431003120201302131
5212200420431323
610234422435125
71004212656455
oct150330416235
940152410488
1014015405213
115a42370417
122871892aa5
131424873aa4
1496d566d65
155706779c8
hex343621c9d

14015405213 has 4 divisors (see below), whose sum is σ = 14016132828. Its totient is φ = 14014677600.

The previous prime is 14015405179. The next prime is 14015405231. The reversal of 14015405213 is 31250451041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31250451041 = 128879242479.

It can be written as a sum of positive squares in 2 ways, for example, as 5129137924 + 8886267289 = 71618^2 + 94267^2 .

It is a cyclic number.

It is not a de Polignac number, because 14015405213 - 212 = 14015401117 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 (14015405293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334106 + ... + 373707.

It is an arithmetic number, because the mean of its divisors is an integer number (3504033207).

Almost surely, 214015405213 is an apocalyptic number.

It is an amenable number.

14015405213 is a deficient number, since it is larger than the sum of its proper divisors (727615).

14015405213 is an equidigital number, since it uses as much as digits as its factorization.

14015405213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727614.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 14015405213 its reverse (31250451041), we get a palindrome (45265856254).

The spelling of 14015405213 in words is "fourteen billion, fifteen million, four hundred five thousand, two hundred thirteen".

Divisors: 1 19801 707813 14015405213