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68398585 = 517976423
BaseRepresentation
bin1000001001110…
…10110111111001
311202201000012221
410010322313321
5120002223320
610442004041
71460243533
oct404726771
9152630187
1068398585
1135677962
121aaa6621
131122a948
149126853
1560113aa
hex413adf9

68398585 has 8 divisors (see below), whose sum is σ = 82537920. Its totient is φ = 54412464.

The previous prime is 68398579. The next prime is 68398601. The reversal of 68398585 is 58589386.

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 68398585 - 27 = 68398457 is a prime.

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, 37317 + ... + 39106.

It is an arithmetic number, because the mean of its divisors is an integer number (10317240).

Almost surely, 268398585 is an apocalyptic number.

It is an amenable number.

68398585 is a deficient number, since it is larger than the sum of its proper divisors (14139335).

68398585 is a wasteful number, since it uses less digits than its factorization.

68398585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76607.

The product of its digits is 2073600, while the sum is 52.

The square root of 68398585 is about 8270.3437050705. The cubic root of 68398585 is about 408.9614504470.

The spelling of 68398585 in words is "sixty-eight million, three hundred ninety-eight thousand, five hundred eighty-five".

Divisors: 1 5 179 895 76423 382115 13679717 68398585