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13227218287 is a prime number
BaseRepresentation
bin11000101000110011…
…10101010101101111
31021010211100022100121
430110121311111233
5204042131441122
610024305105411
7645532333423
oct142431652557
937124308317
1013227218287
115678468968
122691928267
13132a498aaa
148d69d4b83
15526385bc7
hex31467556f

13227218287 has 2 divisors, whose sum is σ = 13227218288. Its totient is φ = 13227218286.

The previous prime is 13227218227. The next prime is 13227218293. The reversal of 13227218287 is 78281272231.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13227218287 is a prime.

It is a super-2 number, since 2×132272182872 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13227218227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6613609143 + 6613609144.

It is an arithmetic number, because the mean of its divisors is an integer number (6613609144).

Almost surely, 213227218287 is an apocalyptic number.

13227218287 is a deficient number, since it is larger than the sum of its proper divisors (1).

13227218287 is an equidigital number, since it uses as much as digits as its factorization.

13227218287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 150528, while the sum is 43.

The spelling of 13227218287 in words is "thirteen billion, two hundred twenty-seven million, two hundred eighteen thousand, two hundred eighty-seven".