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68308834 = 2118337409
BaseRepresentation
bin1000001001001…
…00111101100010
311202112110002211
410010210331202
5114441340314
610440032334
71456421056
oct404447542
9152473084
1068308834
1135616490
121aa626aa
13111c8b39
149101c66
155ee49c4
hex4124f62

68308834 has 16 divisors (see below), whose sum is σ = 113127840. Its totient is φ = 30674560.

The previous prime is 68308787. The next prime is 68308847. The reversal of 68308834 is 43880386.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16879 + ... + 20530.

It is an arithmetic number, because the mean of its divisors is an integer number (7070490).

Almost surely, 268308834 is an apocalyptic number.

68308834 is a deficient number, since it is larger than the sum of its proper divisors (44819006).

68308834 is a wasteful number, since it uses less digits than its factorization.

68308834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37505.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 68308834 is about 8264.9158495414. The cubic root of 68308834 is about 408.7824956474.

The spelling of 68308834 in words is "sixty-eight million, three hundred eight thousand, eight hundred thirty-four".

Divisors: 1 2 11 22 83 166 913 1826 37409 74818 411499 822998 3104947 6209894 34154417 68308834