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68086338 = 2367169369
BaseRepresentation
bin1000000111011…
…10101001000010
311202010010220020
410003232221002
5114412230323
610431154310
71454503305
oct403565102
9152103806
1068086338
1135484301
121a975996
131114b798
149084b3c
155e9dae3
hex40eea42

68086338 has 16 divisors (see below), whose sum is σ = 138205920. Its totient is φ = 22356576.

The previous prime is 68086331. The next prime is 68086349. The reversal of 68086338 is 83368086.

It is a self number, because there is not a number n which added to its sum of digits gives 68086338.

It is not an unprimeable number, because it can be changed into a prime (68086331) 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, 84283 + ... + 85086.

It is an arithmetic number, because the mean of its divisors is an integer number (8637870).

Almost surely, 268086338 is an apocalyptic number.

68086338 is an abundant number, since it is smaller than the sum of its proper divisors (70119582).

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

68086338 is a wasteful number, since it uses less digits than its factorization.

68086338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169441.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 68086338 is about 8251.4446007957. Note that the first 3 decimals coincide. The cubic root of 68086338 is about 408.3381831809.

The spelling of 68086338 in words is "sixty-eight million, eighty-six thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 67 134 201 402 169369 338738 508107 1016214 11347723 22695446 34043169 68086338