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68306793 = 324239397
BaseRepresentation
bin1000001001001…
…00011101101001
311202112100022020
410010210131221
5114441304133
610440015053
71456412112
oct404443551
9152470266
1068306793
11356149a5
121aa61489
13111c7c29
149101209
155ee40b3
hex4124769

68306793 has 8 divisors (see below), whose sum is σ = 91123008. Its totient is φ = 45514224.

The previous prime is 68306789. The next prime is 68306809. The reversal of 68306793 is 39760386.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68306793 - 22 = 68306789 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (68306713) 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 7 ways as a sum of consecutive naturals, for example, 2571 + ... + 11967.

It is an arithmetic number, because the mean of its divisors is an integer number (11390376).

Almost surely, 268306793 is an apocalyptic number.

It is an amenable number.

68306793 is a deficient number, since it is larger than the sum of its proper divisors (22816215).

68306793 is a wasteful number, since it uses less digits than its factorization.

68306793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11823.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 68306793 is about 8264.7923748876. The cubic root of 68306793 is about 408.7784242688.

The spelling of 68306793 in words is "sixty-eight million, three hundred six thousand, seven hundred ninety-three".

Divisors: 1 3 2423 7269 9397 28191 22768931 68306793