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444444004 = 22160169401
BaseRepresentation
bin11010011111011…
…010110101100100
31010222022002120001
4122133122311210
51402234202004
6112033551044
714004466054
oct3237326544
91128262501
10444444004
112089713a4
12104a15484
1371102b24
1443053564
15290421a4
hex1a7dad64

444444004 has 12 divisors (see below), whose sum is σ = 778274028. Its totient is φ = 222080000.

The previous prime is 444443999. The next prime is 444444083. The reversal of 444444004 is 400444444.

It can be written as a sum of positive squares in 2 ways, for example, as 396806400 + 47637604 = 19920^2 + 6902^2 .

It is an unprimeable number.

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, 28297 + ... + 41104.

It is an arithmetic number, because the mean of its divisors is an integer number (64856169).

Almost surely, 2444444004 is an apocalyptic number.

It is an amenable number.

444444004 is a deficient number, since it is larger than the sum of its proper divisors (333830024).

444444004 is a wasteful number, since it uses less digits than its factorization.

444444004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71006 (or 71004 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

The square root of 444444004 is about 21081.8406217294. The cubic root of 444444004 is about 763.1425762773.

Adding to 444444004 its reverse (400444444), we get a palindrome (844888448).

The spelling of 444444004 in words is "four hundred forty-four million, four hundred forty-four thousand, four".

Divisors: 1 2 4 1601 3202 6404 69401 138802 277604 111111001 222222002 444444004