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68885718 = 23111043723
BaseRepresentation
bin1000001101100…
…01110011010110
311210121202102220
410012301303112
5120113320333
610500243210
71464342666
oct406616326
9153552386
1068885718
113597a950
121b0a0506
131136b5a5
1492121a6
1560aa8b3
hex41b1cd6

68885718 has 16 divisors (see below), whose sum is σ = 150296256. Its totient is φ = 20874440.

The previous prime is 68885657. The next prime is 68885723. The reversal of 68885718 is 81758886.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 521796 + ... + 521927.

It is an arithmetic number, because the mean of its divisors is an integer number (9393516).

Almost surely, 268885718 is an apocalyptic number.

68885718 is an abundant number, since it is smaller than the sum of its proper divisors (81410538).

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

68885718 is a wasteful number, since it uses less digits than its factorization.

68885718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043739.

The product of its digits is 860160, while the sum is 51.

The square root of 68885718 is about 8299.7420441843. The cubic root of 68885718 is about 409.9300257342.

The spelling of 68885718 in words is "sixty-eight million, eight hundred eighty-five thousand, seven hundred eighteen".

Divisors: 1 2 3 6 11 22 33 66 1043723 2087446 3131169 6262338 11480953 22961906 34442859 68885718