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68881334 = 2173227877
BaseRepresentation
bin1000001101100…
…00101110110110
311210121112102112
410012300232312
5120113200314
610500211022
71464324134
oct406605666
9153545375
1068881334
1135977625
121b099a72
13113695b2
149210754
1560a943e
hex41b0bb6

68881334 has 16 divisors (see below), whose sum is σ = 104496048. Its totient is φ = 34051872.

The previous prime is 68881333. The next prime is 68881339. The reversal of 68881334 is 43318886.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 68881291 and 68881300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68881333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78104 + ... + 78980.

It is an arithmetic number, because the mean of its divisors is an integer number (6531003).

Almost surely, 268881334 is an apocalyptic number.

68881334 is a deficient number, since it is larger than the sum of its proper divisors (35614714).

68881334 is a wasteful number, since it uses less digits than its factorization.

68881334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279.

The product of its digits is 110592, while the sum is 41.

The square root of 68881334 is about 8299.4779353885. The cubic root of 68881334 is about 409.9213293435.

The spelling of 68881334 in words is "sixty-eight million, eight hundred eighty-one thousand, three hundred thirty-four".

Divisors: 1 2 173 227 346 454 877 1754 39271 78542 151721 199079 303442 398158 34440667 68881334