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13508688871 is a prime number
BaseRepresentation
bin11001001010010111…
…00011101111100111
31021212102222111102001
430211023203233213
5210131211020441
610112242030131
7655520650366
oct144513435747
937772874361
1013508688871
115802336987
122750048347
1313738a9932
149221437dd
15540e34731
hex3252e3be7

13508688871 has 2 divisors, whose sum is σ = 13508688872. Its totient is φ = 13508688870.

The previous prime is 13508688839. The next prime is 13508688931. The reversal of 13508688871 is 17888680531.

It is a weak prime.

It is an emirp because it is prime and its reverse (17888680531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13508688871 - 25 = 13508688839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13508488871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6754344435 + 6754344436.

It is an arithmetic number, because the mean of its divisors is an integer number (6754344436).

Almost surely, 213508688871 is an apocalyptic number.

13508688871 is a deficient number, since it is larger than the sum of its proper divisors (1).

13508688871 is an equidigital number, since it uses as much as digits as its factorization.

13508688871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2580480, while the sum is 55.

The spelling of 13508688871 in words is "thirteen billion, five hundred eight million, six hundred eighty-eight thousand, eight hundred seventy-one".