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44002143240 = 23351133334957
BaseRepresentation
bin101000111110101110…
…110110110000001000
311012120120210110220220
4220332232312300020
51210104022040430
632114142350040
73115262021616
oct507656666010
9135516713826
1044002143240
1117730076540
12864028b320
1341c3274663
1421b5d1c6b6
151228032110
hexa3ebb6c08

44002143240 has 64 divisors (see below), whose sum is σ = 144007018560. Its totient is φ = 10667185920.

The previous prime is 44002143223. The next prime is 44002143247. The reversal of 44002143240 is 4234120044.

It is a happy number.

44002143240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 44002143240.

It is not an unprimeable number, because it can be changed into a prime (44002143247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16666159 + ... + 16668798.

It is an arithmetic number, because the mean of its divisors is an integer number (2250109665).

Almost surely, 244002143240 is an apocalyptic number.

44002143240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44002143240 is an abundant number, since it is smaller than the sum of its proper divisors (100004875320).

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

44002143240 is a wasteful number, since it uses less digits than its factorization.

44002143240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33334982 (or 33334978 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 44002143240 its reverse (4234120044), we get a palindrome (48236263284).

The spelling of 44002143240 in words is "forty-four billion, two million, one hundred forty-three thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 110 120 132 165 220 264 330 440 660 1320 33334957 66669914 100004871 133339828 166674785 200009742 266679656 333349570 366684527 400019484 500024355 666699140 733369054 800038968 1000048710 1100053581 1333398280 1466738108 1833422635 2000097420 2200107162 2933476216 3666845270 4000194840 4400214324 5500267905 7333690540 8800428648 11000535810 14667381080 22001071620 44002143240