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68395759 is a prime number
BaseRepresentation
bin1000001001110…
…10001011101111
311202200212100021
410010322023233
5120002131014
610441543011
71460232355
oct404721357
9152625307
1068395759
1135675823
121aaa4a67
1311229583
1491257d5
156010624
hex413a2ef

68395759 has 2 divisors, whose sum is σ = 68395760. Its totient is φ = 68395758.

The previous prime is 68395753. The next prime is 68395783. The reversal of 68395759 is 95759386.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68395759 - 25 = 68395727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68395753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34197879 + 34197880.

It is an arithmetic number, because the mean of its divisors is an integer number (34197880).

Almost surely, 268395759 is an apocalyptic number.

68395759 is a deficient number, since it is larger than the sum of its proper divisors (1).

68395759 is an equidigital number, since it uses as much as digits as its factorization.

68395759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2041200, while the sum is 52.

The square root of 68395759 is about 8270.1728518816. The cubic root of 68395759 is about 408.9558180645.

The spelling of 68395759 in words is "sixty-eight million, three hundred ninety-five thousand, seven hundred fifty-nine".