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1313444444031 = 32197680961661
BaseRepresentation
bin10011000111001111011…
…000111011011101111111
311122120020012102222021200
4103013033120323131333
5133004413234202111
62443215452430543
7163615243365246
oct23071730733577
94576205388250
101313444444031
11467035168a65
12192679a78453
1396b1b59bc75
14477dcd6795d
15242743b9256
hex131cf63b77f

1313444444031 has 12 divisors (see below), whose sum is σ = 1997050032120. Its totient is φ = 829543859280.

The previous prime is 1313444444017. The next prime is 1313444444087. The reversal of 1313444444031 is 1304444443131.

1313444444031 is a `hidden beast` number, since 13 + 134 + 4 + 44 + 440 + 31 = 666.

It is not a de Polignac number, because 1313444444031 - 25 = 1313444443999 is a prime.

It is a super-2 number, since 2×13134444440312 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313444444831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3840480660 + ... + 3840481001.

It is an arithmetic number, because the mean of its divisors is an integer number (166420836010).

Almost surely, 21313444444031 is an apocalyptic number.

1313444444031 is a deficient number, since it is larger than the sum of its proper divisors (683605588089).

1313444444031 is a wasteful number, since it uses less digits than its factorization.

1313444444031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7680961686 (or 7680961683 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 1313444444031 its reverse (1304444443131), we get a palindrome (2617888887162).

The spelling of 1313444444031 in words is "one trillion, three hundred thirteen billion, four hundred forty-four million, four hundred forty-four thousand, thirty-one".

Divisors: 1 3 9 19 57 171 7680961661 23042884983 69128654949 145938271559 437814814677 1313444444031