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13542974279 is a prime number
BaseRepresentation
bin11001001110011100…
…10110001101000111
31021221211111101010222
430213032112031013
5210214000134104
610115504534555
7656415245012
oct144716261507
937854441128
1013542974279
11581a72402a
12275b62145b
13137aa22363
1492690a379
15543e581be
hex327396347

13542974279 has 2 divisors, whose sum is σ = 13542974280. Its totient is φ = 13542974278.

The previous prime is 13542974257. The next prime is 13542974281. The reversal of 13542974279 is 97247924531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13542974279 - 212 = 13542970183 is a prime.

Together with 13542974281, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13542974279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13542974239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6771487139 + 6771487140.

It is an arithmetic number, because the mean of its divisors is an integer number (6771487140).

Almost surely, 213542974279 is an apocalyptic number.

13542974279 is a deficient number, since it is larger than the sum of its proper divisors (1).

13542974279 is an equidigital number, since it uses as much as digits as its factorization.

13542974279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 53.

The spelling of 13542974279 in words is "thirteen billion, five hundred forty-two million, nine hundred seventy-four thousand, two hundred seventy-nine".