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68078192 = 2471346757
BaseRepresentation
bin1000000111011…
…00101001110000
311202002201201112
410003230221300
5114412000232
610431052452
71454440460
oct403545160
9152081645
1068078192
1135479176
121a971128
1311147b70
149081ba0
155e9b4b2
hex40eca70

68078192 has 40 divisors (see below), whose sum is σ = 162343776. Its totient is φ = 26931456.

The previous prime is 68078191. The next prime is 68078203. The reversal of 68078192 is 29187086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68078191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21923 + ... + 24834.

Almost surely, 268078192 is an apocalyptic number.

It is an amenable number.

68078192 is an abundant number, since it is smaller than the sum of its proper divisors (94265584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68078192 is a wasteful number, since it uses less digits than its factorization.

68078192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46785 (or 46779 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 68078192 is about 8250.9509754937. The cubic root of 68078192 is about 408.3218977037.

The spelling of 68078192 in words is "sixty-eight million, seventy-eight thousand, one hundred ninety-two".

Divisors: 1 2 4 7 8 13 14 16 26 28 52 56 91 104 112 182 208 364 728 1456 46757 93514 187028 327299 374056 607841 654598 748112 1215682 1309196 2431364 2618392 4254887 4862728 5236784 8509774 9725456 17019548 34039096 68078192