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68008332440827 = 328551720699431
BaseRepresentation
bin11110111011010011011000…
…11111110011010011111011
322220210112101121201202211001
433131221230133303103323
532403222031101101302
6400350332511345431
720216303606510242
oct1735515437632373
9286715347652731
1068008332440827
111a740198764479
127764578b22277
132bc42098314bc
1412b1899899959
157ce0bd2ce787
hex3dda6c7f34fb

68008332440827 has 4 divisors (see below), whose sum is σ = 68008356425776. Its totient is φ = 68008308455880.

The previous prime is 68008332440813. The next prime is 68008332440941. The reversal of 68008332440827 is 72804423380086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68008332440827 - 235 = 67973972702459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68008332450827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7064199 + ... + 13635232.

It is an arithmetic number, because the mean of its divisors is an integer number (17002089106444).

Almost surely, 268008332440827 is an apocalyptic number.

68008332440827 is a deficient number, since it is larger than the sum of its proper divisors (23984949).

68008332440827 is a wasteful number, since it uses less digits than its factorization.

68008332440827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23984948.

The product of its (nonzero) digits is 12386304, while the sum is 55.

The spelling of 68008332440827 in words is "sixty-eight trillion, eight billion, three hundred thirty-two million, four hundred forty thousand, eight hundred twenty-seven".

Divisors: 1 3285517 20699431 68008332440827