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68793117 = 322931039
BaseRepresentation
bin1000001100110…
…11001100011101
311210110001102020
410012123030131
5120102334432
610454250353
71463506011
oct406331435
9153401366
1068793117
1135917318
121b0569b9
13113383b3
1491ca541
15608d22c
hex419b31d

68793117 has 4 divisors (see below), whose sum is σ = 91724160. Its totient is φ = 45862076.

The previous prime is 68793103. The next prime is 68793149. The reversal of 68793117 is 71139786.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68793117 - 210 = 68792093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68793187) 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 3 ways as a sum of consecutive naturals, for example, 11465517 + ... + 11465522.

It is an arithmetic number, because the mean of its divisors is an integer number (22931040).

Almost surely, 268793117 is an apocalyptic number.

It is an amenable number.

68793117 is a deficient number, since it is larger than the sum of its proper divisors (22931043).

68793117 is a wasteful number, since it uses less digits than its factorization.

68793117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22931042.

The product of its digits is 63504, while the sum is 42.

The square root of 68793117 is about 8294.1616212852. The cubic root of 68793117 is about 409.7462578280.

The spelling of 68793117 in words is "sixty-eight million, seven hundred ninety-three thousand, one hundred seventeen".

Divisors: 1 3 22931039 68793117