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68038014239 = 135233693403
BaseRepresentation
bin111111010111011000…
…011011010100011111
320111121200112020101022
4333113120123110133
52103320212423424
651131202434355
74626021402356
oct772730332437
9214550466338
1068038014239
112694475a138
12112299629bb
136553b20030
14341621499d
151b8325b95e
hexfd761b51f

68038014239 has 4 divisors (see below), whose sum is σ = 73271707656. Its totient is φ = 62804320824.

The previous prime is 68038014199. The next prime is 68038014241. The reversal of 68038014239 is 93241083086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93241083086 = 246620541543.

It is a cyclic number.

It is not a de Polignac number, because 68038014239 - 224 = 68021237023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68038014239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68038004239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2616846689 + ... + 2616846714.

It is an arithmetic number, because the mean of its divisors is an integer number (18317926914).

Almost surely, 268038014239 is an apocalyptic number.

68038014239 is a deficient number, since it is larger than the sum of its proper divisors (5233693417).

68038014239 is a wasteful number, since it uses less digits than its factorization.

68038014239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5233693416.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 68038014239 in words is "sixty-eight billion, thirty-eight million, fourteen thousand, two hundred thirty-nine".

Divisors: 1 13 5233693403 68038014239