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1313442444031 = 4373931144939
BaseRepresentation
bin10011000111001111010…
…001010011001011111111
311122120020001200100210121
4103013033101103023333
5133004412231202111
62443215341515411
7163615220365324
oct23071721231377
94576201610717
101313442444031
11467034022373
12192679272b67
1396b1b04b833
14477dc9a6b4b
1524274121871
hex131cf4532ff

1313442444031 has 16 divisors (see below), whose sum is σ = 1362575047680. Its totient is φ = 1265159286720.

The previous prime is 1313442444019. The next prime is 1313442444047. The reversal of 1313442444031 is 1304442443131.

It is a cyclic number.

It is not a de Polignac number, because 1313442444031 - 221 = 1313440346879 is a prime.

It is a super-2 number, since 2×13134424440312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313442445031) 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, 29204760 + ... + 29249698.

It is an arithmetic number, because the mean of its divisors is an integer number (85160940480).

Almost surely, 21313442444031 is an apocalyptic number.

1313442444031 is a deficient number, since it is larger than the sum of its proper divisors (49132603649).

1313442444031 is an equidigital number, since it uses as much as digits as its factorization.

1313442444031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54366.

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 1313442444031 its reverse (1304442443131), we get a palindrome (2617884887162).

The spelling of 1313442444031 in words is "one trillion, three hundred thirteen billion, four hundred forty-two million, four hundred forty-four thousand, thirty-one".

Divisors: 1 43 73 3139 9311 44939 400373 679703 1932377 3280547 29227229 141063521 418427029 17992362247 30545173117 1313442444031