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68773 = 97709
BaseRepresentation
bin10000110010100101
310111100011
4100302211
54200043
61250221
7404335
oct206245
9114304
1068773
1147741
1233971
13253c3
141b0c5
151559d
hex10ca5

68773 has 4 divisors (see below), whose sum is σ = 69580. Its totient is φ = 67968.

The previous prime is 68771. The next prime is 68777. The reversal of 68773 is 37786.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19044 + 49729 = 138^2 + 223^2 .

It is a cyclic number.

It is not a de Polignac number, because 68773 - 21 = 68771 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258 + ... + 451.

It is an arithmetic number, because the mean of its divisors is an integer number (17395).

268773 is an apocalyptic number.

It is an amenable number.

68773 is a deficient number, since it is larger than the sum of its proper divisors (807).

68773 is an equidigital number, since it uses as much as digits as its factorization.

68773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806.

The product of its digits is 7056, while the sum is 31.

The square root of 68773 is about 262.2460676540. The cubic root of 68773 is about 40.9706313575.

It can be divided in two parts, 68 and 773, that added together give a square (841 = 292).

The spelling of 68773 in words is "sixty-eight thousand, seven hundred seventy-three".

Divisors: 1 97 709 68773