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26806 = 2131031
BaseRepresentation
bin110100010110110
31100202211
412202312
51324211
6324034
7141103
oct64266
940684
1026806
111915a
121361a
13c280
149aaa
157e21
hex68b6

26806 has 8 divisors (see below), whose sum is σ = 43344. Its totient is φ = 12360.

The previous prime is 26801. The next prime is 26813. The reversal of 26806 is 60862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490 + ... + 541.

It is an arithmetic number, because the mean of its divisors is an integer number (5418).

226806 is an apocalyptic number.

26806 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

26806 is a deficient number, since it is larger than the sum of its proper divisors (16538).

26806 is a wasteful number, since it uses less digits than its factorization.

26806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 26806 is about 163.7253798285. The cubic root of 26806 is about 29.9279753683.

The spelling of 26806 in words is "twenty-six thousand, eight hundred six".

Divisors: 1 2 13 26 1031 2062 13403 26806