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68245859 = 1143157919
BaseRepresentation
bin1000001000101…
…01100101100011
311202102020201102
410010111211203
5114432331414
610434425015
71456036343
oct404254543
9152366642
1068245859
1135583140
121aa3216b
13111a6286
1490c6d23
155ed0ede
hex4115963

68245859 has 16 divisors (see below), whose sum is σ = 76750080. Its totient is φ = 60147360.

The previous prime is 68245847. The next prime is 68245861. The reversal of 68245859 is 95854286.

It is a cyclic number.

It is not a de Polignac number, because 68245859 - 28 = 68245603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68245819) 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 15 ways as a sum of consecutive naturals, for example, 73802 + ... + 74720.

It is an arithmetic number, because the mean of its divisors is an integer number (4796880).

Almost surely, 268245859 is an apocalyptic number.

68245859 is a deficient number, since it is larger than the sum of its proper divisors (8504221).

68245859 is a wasteful number, since it uses less digits than its factorization.

68245859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130.

The product of its digits is 691200, while the sum is 47.

The square root of 68245859 is about 8261.1051924062. The cubic root of 68245859 is about 408.6568359965.

The spelling of 68245859 in words is "sixty-eight million, two hundred forty-five thousand, eight hundred fifty-nine".

Divisors: 1 11 43 157 473 919 1727 6751 10109 39517 74261 144283 434687 1587113 6204169 68245859