Search a number
-
+
44040040444240 = 2452531217503163
BaseRepresentation
bin10100000001101110111101…
…11101110111000101010000
312202221012001010210000210221
422000313132331313011100
521233023000323203430
6233355414300002424
712163534154155651
oct1200673675670520
9182835033700727
1044040040444240
111303a304789075
124b33308530414
131b75c5b936549
14ac3799513528
155158b0eec57a
hex280ddef77150

44040040444240 has 40 divisors (see below), whose sum is σ = 102433550092128. Its totient is φ = 17609055995520.

The previous prime is 44040040444219. The next prime is 44040040444241. The reversal of 44040040444240 is 4244404004044.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 44040040444196 and 44040040444205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44040040444241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108549102 + ... + 108954061.

Almost surely, 244040040444240 is an apocalyptic number.

44040040444240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44040040444240 is an abundant number, since it is smaller than the sum of its proper divisors (58393509647888).

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

44040040444240 is a wasteful number, since it uses less digits than its factorization.

44040040444240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217505707 (or 217505701 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 44040040444240 its reverse (4244404004044), we get a palindrome (48284444448284).

The spelling of 44040040444240 in words is "forty-four trillion, forty billion, forty million, four hundred forty-four thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 2531 5062 10124 12655 20248 25310 40496 50620 101240 202480 217503163 435006326 870012652 1087515815 1740025304 2175031630 3480050608 4350063260 8700126520 17400253040 550500505553 1101001011106 2202002022212 2752502527765 4404004044424 5505005055530 8808008088848 11010010111060 22020020222120 44040040444240