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68816795 = 513763359
BaseRepresentation
bin1000001101000…
…00111110011011
311210111020220012
410012200332123
5120104114140
610454552135
71463635025
oct406407633
9153436805
1068816795
1135933093
121b06864b
13113460c8
1491d5015
156095265
hex41a0f9b

68816795 has 4 divisors (see below), whose sum is σ = 82580160. Its totient is φ = 55053432.

The previous prime is 68816779. The next prime is 68816801. The reversal of 68816795 is 59761886.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68816795 - 24 = 68816779 is a prime.

It is an unprimeable number.

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, 6881675 + ... + 6881684.

It is an arithmetic number, because the mean of its divisors is an integer number (20645040).

Almost surely, 268816795 is an apocalyptic number.

68816795 is a deficient number, since it is larger than the sum of its proper divisors (13763365).

68816795 is a wasteful number, since it uses less digits than its factorization.

68816795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13763364.

The product of its digits is 725760, while the sum is 50.

The square root of 68816795 is about 8295.5888880778. The cubic root of 68816795 is about 409.7932628164.

The spelling of 68816795 in words is "sixty-eight million, eight hundred sixteen thousand, seven hundred ninety-five".

Divisors: 1 5 13763359 68816795