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26806441 = 149179909
BaseRepresentation
bin110011001000…
…0100010101001
31212102220112011
41212100202221
523330301231
62354315521
7443564614
oct146204251
955386464
1026806441
111414a092
128b88ba1
1357274cc
1437bb17b
1525479b1
hex19908a9

26806441 has 4 divisors (see below), whose sum is σ = 26986500. Its totient is φ = 26626384.

The previous prime is 26806361. The next prime is 26806453. The reversal of 26806441 is 14460862.

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 6780816 + 20025625 = 2604^2 + 4475^2 .

It is a cyclic number.

It is not a de Polignac number, because 26806441 - 27 = 26806313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26806141) 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, 89806 + ... + 90103.

It is an arithmetic number, because the mean of its divisors is an integer number (6746625).

Almost surely, 226806441 is an apocalyptic number.

It is an amenable number.

26806441 is a deficient number, since it is larger than the sum of its proper divisors (180059).

26806441 is a wasteful number, since it uses less digits than its factorization.

26806441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180058.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 26806441 is about 5177.4936986924. The cubic root of 26806441 is about 299.2813948781.

The spelling of 26806441 in words is "twenty-six million, eight hundred six thousand, four hundred forty-one".

Divisors: 1 149 179909 26806441