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444234641 = 4431002787
BaseRepresentation
bin11010011110100…
…111101110010001
31010221220110100212
4122132213232101
51402211002031
6112025253505
714002634504
oct3236475621
91127813325
10444234641
11208839074
12104934295
137105b746
1442ddb13b
152900012b
hex1a7a7b91

444234641 has 4 divisors (see below), whose sum is σ = 445237872. Its totient is φ = 443231412.

The previous prime is 444234629. The next prime is 444234643. The reversal of 444234641 is 146432444.

It is a happy number.

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 444234641 - 218 = 443972497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444234598 and 444234607.

It is not an unprimeable number, because it can be changed into a prime (444234643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500951 + ... + 501836.

It is an arithmetic number, because the mean of its divisors is an integer number (111309468).

Almost surely, 2444234641 is an apocalyptic number.

It is an amenable number.

444234641 is a deficient number, since it is larger than the sum of its proper divisors (1003231).

444234641 is a wasteful number, since it uses less digits than its factorization.

444234641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003230.

The product of its digits is 36864, while the sum is 32.

The square root of 444234641 is about 21076.8745548290. The cubic root of 444234641 is about 763.0227269731.

The spelling of 444234641 in words is "four hundred forty-four million, two hundred thirty-four thousand, six hundred forty-one".

Divisors: 1 443 1002787 444234641