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44444400400 = 2452160169401
BaseRepresentation
bin101001011001000101…
…111011101100010000
311020201101222110200201
4221121011323230100
51212010231303100
632230101424544
73132242112241
oct513105735420
9136641873621
1044444400400
1117937783924
12874440b154
134263a8cc9a
142218962cc8
151251c9136a
hexa5917bb10

44444400400 has 60 divisors (see below), whose sum is σ = 106845905844. Its totient is φ = 17766400000.

The previous prime is 44444400397. The next prime is 44444400409. The reversal of 44444400400 is 400444444.

It can be written as a sum of positive squares in 6 ways, for example, as 4135004416 + 40309395984 = 64304^2 + 200772^2 .

It is not an unprimeable number, because it can be changed into a prime (44444400409) 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 11 ways as a sum of consecutive naturals, for example, 605700 + ... + 675100.

Almost surely, 244444400400 is an apocalyptic number.

44444400400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44444400400 is an abundant number, since it is smaller than the sum of its proper divisors (62401505444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44444400400 is a wasteful number, since it uses less digits than its factorization.

44444400400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71020 (or 71009 counting only the distinct ones).

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

Adding to 44444400400 its reverse (400444444), we get a palindrome (44844844844).

The spelling of 44444400400 in words is "forty-four billion, four hundred forty-four million, four hundred thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 1601 3202 6404 8005 12808 16010 25616 32020 40025 64040 69401 80050 128080 138802 160100 277604 320200 347005 555208 640400 694010 1110416 1388020 1735025 2776040 3470050 5552080 6940100 13880200 27760400 111111001 222222002 444444004 555555005 888888008 1111110010 1777776016 2222220020 2777775025 4444440040 5555550050 8888880080 11111100100 22222200200 44444400400