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68278112 = 257304813
BaseRepresentation
bin1000001000111…
…01011101100000
311202110212221222
410010131131200
5114434344422
610435234212
71456232360
oct404353540
9152425858
1068278112
11355a53a1
121aa48968
13111b7b66
1490d49a0
155eda842
hex411d760

68278112 has 24 divisors (see below), whose sum is σ = 153626256. Its totient is φ = 29261952.

The previous prime is 68278081. The next prime is 68278127. The reversal of 68278112 is 21187286.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 152183 + ... + 152630.

It is an arithmetic number, because the mean of its divisors is an integer number (6401094).

Almost surely, 268278112 is an apocalyptic number.

It is an amenable number.

68278112 is an abundant number, since it is smaller than the sum of its proper divisors (85348144).

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

68278112 is a wasteful number, since it uses less digits than its factorization.

68278112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304830 (or 304822 counting only the distinct ones).

The product of its digits is 10752, while the sum is 35.

The square root of 68278112 is about 8263.0570614029. The cubic root of 68278112 is about 408.7212029453.

The spelling of 68278112 in words is "sixty-eight million, two hundred seventy-eight thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 304813 609626 1219252 2133691 2438504 4267382 4877008 8534764 9754016 17069528 34139056 68278112