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13207644041 = 47281013703
BaseRepresentation
bin11000100110011110…
…01010011110001001
31021002110111211112112
430103033022132021
5204022124102131
610022325352105
7645204056564
oct142317123611
937073454475
1013207644041
1156684094a9
122687268635
1313264043b7
148d417b4db
155247bb02b
hex3133ca789

13207644041 has 4 divisors (see below), whose sum is σ = 13488657792. Its totient is φ = 12926630292.

The previous prime is 13207644011. The next prime is 13207644083. The reversal of 13207644041 is 14044670231.

13207644041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14044670231 = 21296596839.

It is a cyclic number.

It is not a de Polignac number, because 13207644041 - 210 = 13207643017 is a prime.

It is a super-2 number, since 2×132076440412 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13207643989 and 13207644007.

It is not an unprimeable number, because it can be changed into a prime (13207644001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140506805 + ... + 140506898.

It is an arithmetic number, because the mean of its divisors is an integer number (3372164448).

Almost surely, 213207644041 is an apocalyptic number.

It is an amenable number.

13207644041 is a deficient number, since it is larger than the sum of its proper divisors (281013751).

13207644041 is an equidigital number, since it uses as much as digits as its factorization.

13207644041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281013750.

The product of its (nonzero) digits is 16128, while the sum is 32.

The spelling of 13207644041 in words is "thirteen billion, two hundred seven million, six hundred forty-four thousand, forty-one".

Divisors: 1 47 281013703 13207644041