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68806 = 234403
BaseRepresentation
bin10000110011000110
310111101101
4100303012
54200211
61250314
7404413
oct206306
9114341
1068806
1147771
123399a
132541a
141b10a
15155c1
hex10cc6

68806 has 4 divisors (see below), whose sum is σ = 103212. Its totient is φ = 34402.

The previous prime is 68791. The next prime is 68813. The reversal of 68806 is 60886.

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

It is a plaindrome in base 12.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17200 + ... + 17203.

It is an arithmetic number, because the mean of its divisors is an integer number (25803).

268806 is an apocalyptic number.

68806 is a deficient number, since it is larger than the sum of its proper divisors (34406).

68806 is a wasteful number, since it uses less digits than its factorization.

68806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34405.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 68806 is about 262.3089781155. The cubic root of 68806 is about 40.9771834183.

It can be divided in two parts, 6880 and 6, that added together give a palindrome (6886).

The spelling of 68806 in words is "sixty-eight thousand, eight hundred six".

Divisors: 1 2 34403 68806