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26269 = 109241
BaseRepresentation
bin110011010011101
31100000221
412122131
51320034
6321341
7136405
oct63235
940027
1026269
1118811
1213251
13bc59
149805
157bb4
hex669d

26269 has 4 divisors (see below), whose sum is σ = 26620. Its totient is φ = 25920.

The previous prime is 26267. The next prime is 26293. The reversal of 26269 is 96262.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 96262 = 248131.

It can be written as a sum of positive squares in 2 ways, for example, as 19044 + 7225 = 138^2 + 85^2 .

It is a cyclic number.

It is not a de Polignac number, because 26269 - 21 = 26267 is a prime.

It is a super-2 number, since 2×262692 = 1380120722, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26261) 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, 12 + ... + 229.

It is an arithmetic number, because the mean of its divisors is an integer number (6655).

226269 is an apocalyptic number.

It is an amenable number.

26269 is a deficient number, since it is larger than the sum of its proper divisors (351).

26269 is a wasteful number, since it uses less digits than its factorization.

26269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350.

The product of its digits is 1296, while the sum is 25.

The square root of 26269 is about 162.0771421268. The cubic root of 26269 is about 29.7267784800.

Subtracting from 26269 its sum of digits (25), we obtain a square (26244 = 1622).

The spelling of 26269 in words is "twenty-six thousand, two hundred sixty-nine".

Divisors: 1 109 241 26269