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68336085 = 3510742577
BaseRepresentation
bin1000001001010…
…11100111010101
311202120211111010
410010223213111
5114443223320
610440402433
71456563366
oct404534725
9152524433
1068336085
1135634a04
121aa76419
131120836c
14910bb6d
155eecae0
hex412b9d5

68336085 has 16 divisors (see below), whose sum is σ = 110362176. Its totient is φ = 36104448.

The previous prime is 68336083. The next prime is 68336113. The reversal of 68336085 is 58063386.

It is not a de Polignac number, because 68336085 - 21 = 68336083 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68336083) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 19684 + ... + 22893.

It is an arithmetic number, because the mean of its divisors is an integer number (6897636).

Almost surely, 268336085 is an apocalyptic number.

It is an amenable number.

68336085 is a deficient number, since it is larger than the sum of its proper divisors (42026091).

68336085 is a wasteful number, since it uses less digits than its factorization.

68336085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42692.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 68336085 is about 8266.5642802799. The cubic root of 68336085 is about 408.8368480648.

The spelling of 68336085 in words is "sixty-eight million, three hundred thirty-six thousand, eighty-five".

Divisors: 1 3 5 15 107 321 535 1605 42577 127731 212885 638655 4555739 13667217 22778695 68336085