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13504441937 = 77924599931
BaseRepresentation
bin11001001001110110…
…10110111001010001
31021212010222201201012
430210323112321101
5210124114120222
610112011020305
7655436601560
oct144473267121
937763881635
1013504441937
1157aa9a6118
12274a73a695
131372a5085c
14921759bd7
155408961e2
hex324ed6e51

13504441937 has 16 divisors (see below), whose sum is σ = 15636940800. Its totient is φ = 11422915920.

The previous prime is 13504441913. The next prime is 13504441939. The reversal of 13504441937 is 73914440531.

It is a cyclic number.

It is not a de Polignac number, because 13504441937 - 220 = 13503393361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13504441894 and 13504441903.

It is not an unprimeable number, because it can be changed into a prime (13504441939) 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, 1354862 + ... + 1364792.

It is an arithmetic number, because the mean of its divisors is an integer number (977308800).

Almost surely, 213504441937 is an apocalyptic number.

It is an amenable number.

13504441937 is a deficient number, since it is larger than the sum of its proper divisors (2132498863).

13504441937 is an equidigital number, since it uses as much as digits as its factorization.

13504441937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12476.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 13504441937 in words is "thirteen billion, five hundred four million, four hundred forty-one thousand, nine hundred thirty-seven".

Divisors: 1 7 79 553 2459 9931 17213 69517 194261 784549 1359827 5491843 24420329 170942303 1929205991 13504441937