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131040404430013 = 1331398981514739
BaseRepresentation
bin11101110010111000111000…
…110000011101110010111101
3122011222100012002111102102201
4131302320320300131302331
5114133431222013230023
61142411044123351501
736413233244353531
oct3562707060356275
9564870162442381
10131040404430013
1138831a180a2441
1212844612382591
135817098636080
1424505647abbc1
1510239dd082bad
hex772e38c1dcbd

131040404430013 has 16 divisors (see below), whose sum is σ = 145709228044800. Its totient is φ = 117029079051840.

The previous prime is 131040404430011. The next prime is 131040404430059. The reversal of 131040404430013 is 310034404040131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131040404430013 - 21 = 131040404430011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131040404430011) 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, 39149803 + ... + 42364936.

It is an arithmetic number, because the mean of its divisors is an integer number (9106826752800).

Almost surely, 2131040404430013 is an apocalyptic number.

131040404430013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

131040404430013 is a deficient number, since it is larger than the sum of its proper divisors (14668823614787).

131040404430013 is a wasteful number, since it uses less digits than its factorization.

131040404430013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81518772.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 131040404430013 its reverse (310034404040131), we get a palindrome (441074808470144).

The spelling of 131040404430013 in words is "one hundred thirty-one trillion, forty billion, four hundred four million, four hundred thirty thousand, thirteen".

Divisors: 1 13 31 403 3989 51857 123659 1607567 81514739 1059691607 2526956909 32850439817 325162293871 4227109820323 10080031110001 131040404430013