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68865803 = 591167217
BaseRepresentation
bin1000001101011…
…00111100001011
311210120202010022
410012230330023
5120112201203
610500011055
71464230636
oct406547413
9153522108
1068865803
1135966996
121b090a8b
13113624c6
149208c1d
1560a4a38
hex41acf0b

68865803 has 4 divisors (see below), whose sum is σ = 70033080. Its totient is φ = 67698528.

The previous prime is 68865779. The next prime is 68865817. The reversal of 68865803 is 30856886.

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 68865803 - 218 = 68603659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68862803) 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, 583550 + ... + 583667.

It is an arithmetic number, because the mean of its divisors is an integer number (17508270).

Almost surely, 268865803 is an apocalyptic number.

68865803 is a deficient number, since it is larger than the sum of its proper divisors (1167277).

68865803 is a wasteful number, since it uses less digits than its factorization.

68865803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167276.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 68865803 is about 8298.5422213784. The cubic root of 68865803 is about 409.8905180610.

The spelling of 68865803 in words is "sixty-eight million, eight hundred sixty-five thousand, eight hundred three".

Divisors: 1 59 1167217 68865803