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44002011131 = 1313750948539
BaseRepresentation
bin101000111110101110…
…010110011111111011
311012120120112202200222
4220332232112133323
51210104003324011
632114135450255
73115260631511
oct507656263773
9135516482628
1044002011131
111772aa96261
12864022698b
1341c32294a0
1421b5cc64b1
151228007ddb
hexa3eb967fb

44002011131 has 16 divisors (see below), whose sum is σ = 47827432800. Its totient is φ = 40240720128.

The previous prime is 44002011121. The next prime is 44002011133. The reversal of 44002011131 is 13111020044.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 44002011131 - 214 = 44001994747 is a prime.

It is a super-2 number, since 2×440020111312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44002011133) 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, 882260 + ... + 930798.

It is an arithmetic number, because the mean of its divisors is an integer number (2989214550).

Almost surely, 244002011131 is an apocalyptic number.

44002011131 is a deficient number, since it is larger than the sum of its proper divisors (3825421669).

44002011131 is a wasteful number, since it uses less digits than its factorization.

44002011131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49198.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 44002011131 its reverse (13111020044), we get a palindrome (57113031175).

The spelling of 44002011131 in words is "forty-four billion, two million, eleven thousand, one hundred thirty-one".

Divisors: 1 13 137 509 1781 6617 48539 69733 631007 906529 6649843 24706351 86447959 321182563 3384770087 44002011131