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14387871493 is a prime number
BaseRepresentation
bin11010110011001010…
…10111111100000101
31101010201022121020101
431121211113330011
5213431243341433
610335410004101
71016354614132
oct153145277405
941121277211
1014387871493
11611363a896
122956576631
131483a94b38
149a6c01589
155931ed07d
hex359957f05

14387871493 has 2 divisors, whose sum is σ = 14387871494. Its totient is φ = 14387871492.

The previous prime is 14387871439. The next prime is 14387871539. The reversal of 14387871493 is 39417878341.

Together with previous prime (14387871439) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11841357124 + 2546514369 = 108818^2 + 50463^2 .

It is a cyclic number.

It is not a de Polignac number, because 14387871493 - 217 = 14387740421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14387871293) 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, 7193935746 + 7193935747.

It is an arithmetic number, because the mean of its divisors is an integer number (7193935747).

Almost surely, 214387871493 is an apocalyptic number.

It is an amenable number.

14387871493 is a deficient number, since it is larger than the sum of its proper divisors (1).

14387871493 is an equidigital number, since it uses as much as digits as its factorization.

14387871493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 55.

The spelling of 14387871493 in words is "fourteen billion, three hundred eighty-seven million, eight hundred seventy-one thousand, four hundred ninety-three".