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68388085 = 523594679
BaseRepresentation
bin1000001001110…
…00010011110101
311202200110211001
410010320103311
5120001404320
610441443301
71460201113
oct404702365
9152613731
1068388085
113566aa87
121aaa0531
1311225c2c
149122ab3
15600d20a
hex41384f5

68388085 has 8 divisors (see below), whose sum is σ = 85633920. Its totient is φ = 52331664.

The previous prime is 68388043. The next prime is 68388091. The reversal of 68388085 is 58088386.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68388085 - 225 = 34833653 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297225 + ... + 297454.

It is an arithmetic number, because the mean of its divisors is an integer number (10704240).

Almost surely, 268388085 is an apocalyptic number.

It is an amenable number.

68388085 is a deficient number, since it is larger than the sum of its proper divisors (17245835).

68388085 is a wasteful number, since it uses less digits than its factorization.

68388085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594707.

The product of its (nonzero) digits is 368640, while the sum is 46.

The square root of 68388085 is about 8269.7088824214. The cubic root of 68388085 is about 408.9405225531.

The spelling of 68388085 in words is "sixty-eight million, three hundred eighty-eight thousand, eighty-five".

Divisors: 1 5 23 115 594679 2973395 13677617 68388085