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240441 = 380147
BaseRepresentation
bin111010101100111001
3110012211020
4322230321
530143231
65053053
72020665
oct725471
9405736
10240441
11154713
12b7189
1385596
14638a5
154b396
hex3ab39

240441 has 4 divisors (see below), whose sum is σ = 320592. Its totient is φ = 160292.

The previous prime is 240437. The next prime is 240473. The reversal of 240441 is 144042.

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 240441 - 22 = 240437 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 240441.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 240441.

It is not an unprimeable number, because it can be changed into a prime (240421) 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, 40071 + ... + 40076.

It is an arithmetic number, because the mean of its divisors is an integer number (80148).

2240441 is an apocalyptic number.

It is an amenable number.

240441 is a deficient number, since it is larger than the sum of its proper divisors (80151).

240441 is an equidigital number, since it uses as much as digits as its factorization.

240441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80150.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 240441 is about 490.3478357248. The cubic root of 240441 is about 62.1826904271.

Adding to 240441 its reverse (144042), we get a palindrome (384483).

The spelling of 240441 in words is "two hundred forty thousand, four hundred forty-one", and thus it is an iban number.

Divisors: 1 3 80147 240441