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44204105521 = 1272129163487
BaseRepresentation
bin101001001010110001…
…010001111100110001
311020002122211020002101
4221022301101330301
51211012222334041
632150155220401
73123263461132
oct511261217461
9136078736071
1044204105521
1117824079814
128697a47701
134226067b74
1421d4a91c89
15123ab27b31
hexa4ac51f31

44204105521 has 8 divisors (see below), whose sum is σ = 44573368320. Its totient is φ = 43835174208.

The previous prime is 44204105489. The next prime is 44204105537. The reversal of 44204105521 is 12550140244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44204105521 - 25 = 44204105489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44204105521.

It is not an unprimeable number, because it can be changed into a prime (44204105591) 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 7 ways as a sum of consecutive naturals, for example, 188640 + ... + 352126.

It is an arithmetic number, because the mean of its divisors is an integer number (5571671040).

Almost surely, 244204105521 is an apocalyptic number.

It is an amenable number.

44204105521 is a deficient number, since it is larger than the sum of its proper divisors (369262799).

44204105521 is a wasteful number, since it uses less digits than its factorization.

44204105521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165743.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 44204105521 its reverse (12550140244), we get a palindrome (56754245765).

The spelling of 44204105521 in words is "forty-four billion, two hundred four million, one hundred five thousand, five hundred twenty-one".

Divisors: 1 127 2129 163487 270383 20762849 348063823 44204105521