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445224769 = 1140474979
BaseRepresentation
bin11010100010011…
…001011101000001
31011000202202120021
4122202121131001
51402434143034
6112102413441
714014230253
oct3242313501
91130682507
10445224769
11209354a60
12105131281
1371317312
14431b7cd3
15291486b4
hex1a899741

445224769 has 4 divisors (see below), whose sum is σ = 485699760. Its totient is φ = 404749780.

The previous prime is 445224763. The next prime is 445224799. The reversal of 445224769 is 967422544.

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 445224769 - 217 = 445093697 is a prime.

It is a super-2 number, since 2×4452247692 = 396450189862206722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445224763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20237479 + ... + 20237500.

It is an arithmetic number, because the mean of its divisors is an integer number (121424940).

Almost surely, 2445224769 is an apocalyptic number.

It is an amenable number.

445224769 is a deficient number, since it is larger than the sum of its proper divisors (40474991).

445224769 is a wasteful number, since it uses less digits than its factorization.

445224769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40474990.

The product of its digits is 483840, while the sum is 43.

The square root of 445224769 is about 21100.3499734009. The cubic root of 445224769 is about 763.5891915559.

The spelling of 445224769 in words is "four hundred forty-five million, two hundred twenty-four thousand, seven hundred sixty-nine".

Divisors: 1 11 40474979 445224769