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444342001 = 2691651829
BaseRepresentation
bin11010011111000…
…001111011110001
31010222002220122011
4122133001323301
51402222421001
6112031442521
714003562505
oct3237017361
91128086564
10444342001
112089017a4
12104986441
137109857c
1443028305
1529021d51
hex1a7c1ef1

444342001 has 4 divisors (see below), whose sum is σ = 445994100. Its totient is φ = 442689904.

The previous prime is 444341993. The next prime is 444342011. The reversal of 444342001 is 100243444.

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 122677776 + 321664225 = 11076^2 + 17935^2 .

It is a cyclic number.

It is not a de Polignac number, because 444342001 - 23 = 444341993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444342011) 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, 825646 + ... + 826183.

It is an arithmetic number, because the mean of its divisors is an integer number (111498525).

Almost surely, 2444342001 is an apocalyptic number.

It is an amenable number.

444342001 is a deficient number, since it is larger than the sum of its proper divisors (1652099).

444342001 is a wasteful number, since it uses less digits than its factorization.

444342001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652098.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 444342001 is about 21079.4212681468. The cubic root of 444342001 is about 763.0841896283.

Adding to 444342001 its reverse (100243444), we get a palindrome (544585445).

The spelling of 444342001 in words is "four hundred forty-four million, three hundred forty-two thousand, one".

Divisors: 1 269 1651829 444342001