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44102718018 = 232494992
BaseRepresentation
bin101001000100101110…
…100001001001000010
311012211121001012120200
4221010232201021002
51210310243434033
632132134150030
73120622626552
oct510456411102
9135747035520
1044102718018
111778191a897
128669ab2316
13420b059968
1421c541d162
151231c9c013
hexa44ba1242

44102718018 has 18 divisors (see below), whose sum is σ = 95557819539. Its totient is φ = 14700609012.

The previous prime is 44102718001. The next prime is 44102718029. The reversal of 44102718018 is 81081720144.

44102718018 is a `hidden beast` number, since 441 + 0 + 27 + 180 + 18 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22051359009 + 22051359009 = 148497^2 + 148497^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅BA, here for A=2, B=148497.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 866233 + ... + 915731.

Almost surely, 244102718018 is an apocalyptic number.

44102718018 is an abundant number, since it is smaller than the sum of its proper divisors (51455101521).

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

44102718018 is an frugal number, since it uses more digits than its factorization.

44102718018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99006 (or 49504 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The spelling of 44102718018 in words is "forty-four billion, one hundred two million, seven hundred eighteen thousand, eighteen".

Divisors: 1 2 3 6 9 18 49499 98998 148497 296994 445491 890982 2450151001 4900302002 7350453003 14700906006 22051359009 44102718018