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68325305 = 529471209
BaseRepresentation
bin1000001001010…
…00111110111001
311202120021200212
410010220332321
5114442402210
610440240505
71456520066
oct404507671
9152507625
1068325305
11356278a4
121aa70135
1311203499
149107c6d
155ee9805
hex4128fb9

68325305 has 8 divisors (see below), whose sum is σ = 84817800. Its totient is φ = 52775296.

The previous prime is 68325293. The next prime is 68325317. The reversal of 68325305 is 50352386.

It is an interprime number because it is at equal distance from previous prime (68325293) and next prime (68325317).

It can be written as a sum of positive squares in 4 ways, for example, as 822649 + 67502656 = 907^2 + 8216^2 .

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 68325305 - 26 = 68325241 is a prime.

It is a Curzon 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, 235460 + ... + 235749.

It is an arithmetic number, because the mean of its divisors is an integer number (10602225).

Almost surely, 268325305 is an apocalyptic number.

It is an amenable number.

68325305 is a deficient number, since it is larger than the sum of its proper divisors (16492495).

68325305 is a wasteful number, since it uses less digits than its factorization.

68325305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471243.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 68325305 is about 8265.9122303591. The cubic root of 68325305 is about 408.8153489647.

The spelling of 68325305 in words is "sixty-eight million, three hundred twenty-five thousand, three hundred five".

Divisors: 1 5 29 145 471209 2356045 13665061 68325305