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68780883 = 322926961
BaseRepresentation
bin1000001100110…
…00001101010011
311210102102122010
410012120031103
5120101442013
610454114003
71463425233
oct406301523
9153372563
1068780883
1135909106
121b04b903
1311332962
1491c5cc3
1560897c3
hex4198353

68780883 has 4 divisors (see below), whose sum is σ = 91707848. Its totient is φ = 45853920.

The previous prime is 68780867. The next prime is 68780897. The reversal of 68780883 is 38808786.

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

It is not a de Polignac number, because 68780883 - 24 = 68780867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68780813) 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 3 ways as a sum of consecutive naturals, for example, 11463478 + ... + 11463483.

It is an arithmetic number, because the mean of its divisors is an integer number (22926962).

Almost surely, 268780883 is an apocalyptic number.

68780883 is a deficient number, since it is larger than the sum of its proper divisors (22926965).

68780883 is a wasteful number, since it uses less digits than its factorization.

68780883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22926964.

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 68780883 is about 8293.4240817650. The cubic root of 68780883 is about 409.7219669633.

The spelling of 68780883 in words is "sixty-eight million, seven hundred eighty thousand, eight hundred eighty-three".

Divisors: 1 3 22926961 68780883