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44420240000 = 2754555253
BaseRepresentation
bin101001010111101001…
…110001001010000000
311020122201111222212002
4221113221301022000
51211433040140000
632223435523132
73131526544613
oct512751611200
9136581458762
1044420240000
1117925081854
1287382b94a8
13425ba80ca6
14221567417a
15124eabc8d5
hexa57a71280

44420240000 has 80 divisors (see below), whose sum is σ = 110581610370. Its totient is φ = 17768064000.

The previous prime is 44420239961. The next prime is 44420240003. The reversal of 44420240000 is 4202444.

It can be written as a sum of positive squares in 5 ways, for example, as 5598630976 + 38821609024 = 74824^2 + 197032^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (44420240003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 197627 + ... + 357626.

Almost surely, 244420240000 is an apocalyptic number.

44420240000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44420240000 is an abundant number, since it is smaller than the sum of its proper divisors (66161370370).

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

44420240000 is an frugal number, since it uses more digits than its factorization.

44420240000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555287 (or 555260 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 44420240000 its reverse (4202444), we get a palindrome (44424442444).

The spelling of 44420240000 in words is "forty-four billion, four hundred twenty million, two hundred forty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 320 400 500 625 640 800 1000 1250 1600 2000 2500 3200 4000 5000 8000 10000 16000 20000 40000 80000 555253 1110506 2221012 2776265 4442024 5552530 8884048 11105060 13881325 17768096 22210120 27762650 35536192 44420240 55525300 69406625 71072384 88840480 111050600 138813250 177680960 222101200 277626500 347033125 355361920 444202400 555253000 694066250 888404800 1110506000 1388132500 1776809600 2221012000 2776265000 4442024000 5552530000 8884048000 11105060000 22210120000 44420240000