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26388241 = 112398931
BaseRepresentation
bin110010010101…
…0011100010001
31211122122212021
41210222130101
523223410431
62341331441
7440203435
oct144523421
954578767
1026388241
1113993970
128a06b81
13560c059
14370c9c5
1524b3b11
hex192a711

26388241 has 4 divisors (see below), whose sum is σ = 28787184. Its totient is φ = 23989300.

The previous prime is 26388227. The next prime is 26388251. The reversal of 26388241 is 14288362.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26388241 - 29 = 26387729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26388197 and 26388206.

It is not an unprimeable number, because it can be changed into a prime (26388251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1199455 + ... + 1199476.

It is an arithmetic number, because the mean of its divisors is an integer number (7196796).

Almost surely, 226388241 is an apocalyptic number.

It is an amenable number.

26388241 is a deficient number, since it is larger than the sum of its proper divisors (2398943).

26388241 is a wasteful number, since it uses less digits than its factorization.

26388241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398942.

The product of its digits is 18432, while the sum is 34.

The square root of 26388241 is about 5136.9486078800. The cubic root of 26388241 is about 297.7168947715.

The spelling of 26388241 in words is "twenty-six million, three hundred eighty-eight thousand, two hundred forty-one".

Divisors: 1 11 2398931 26388241