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68434126271 = 741238446433
BaseRepresentation
bin111111101110111111…
…011110010110111111
320112122021212210221022
4333232333132112333
52110123114020041
651234352454355
74641601322060
oct775677362677
9215567783838
1068434126271
1127028309a55
121131a54a3bb
1365b7bcca54
143452a86567
151ba7e0324b
hexfeefde5bf

68434126271 has 8 divisors (see below), whose sum is σ = 80118001824. Its totient is φ = 57227143680.

The previous prime is 68434126249. The next prime is 68434126309. The reversal of 68434126271 is 17262143486.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68434126271 - 26 = 68434126207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68434126231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119222930 + ... + 119223503.

It is an arithmetic number, because the mean of its divisors is an integer number (10014750228).

Almost surely, 268434126271 is an apocalyptic number.

68434126271 is a deficient number, since it is larger than the sum of its proper divisors (11683875553).

68434126271 is a wasteful number, since it uses less digits than its factorization.

68434126271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238446481.

The product of its digits is 387072, while the sum is 44.

The spelling of 68434126271 in words is "sixty-eight billion, four hundred thirty-four million, one hundred twenty-six thousand, two hundred seventy-one".

Divisors: 1 7 41 287 238446433 1669125031 9776303753 68434126271