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13294543087 = 71899220441
BaseRepresentation
bin11000110000110101…
…01010000011101111
31021022112000202121201
430120122222003233
5204211400334322
610035112110331
7650310515560
oct143032520357
937275022551
1013294543087
115702471aa1
1226b03953a7
13133b40ba57
1490191c167
1552c233d27
hex3186aa0ef

13294543087 has 4 divisors (see below), whose sum is σ = 15193763536. Its totient is φ = 11395322640.

The previous prime is 13294543081. The next prime is 13294543111. The reversal of 13294543087 is 78034549231.

13294543087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78034549231 = 117937661663.

It is a cyclic number.

It is not a de Polignac number, because 13294543087 - 23 = 13294543079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13294543081) 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, 949610214 + ... + 949610227.

It is an arithmetic number, because the mean of its divisors is an integer number (3798440884).

Almost surely, 213294543087 is an apocalyptic number.

13294543087 is a deficient number, since it is larger than the sum of its proper divisors (1899220449).

13294543087 is an equidigital number, since it uses as much as digits as its factorization.

13294543087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899220448.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 13294543087 in words is "thirteen billion, two hundred ninety-four million, five hundred forty-three thousand, eighty-seven".

Divisors: 1 7 1899220441 13294543087