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13303330013 = 26309505657
BaseRepresentation
bin11000110001111000…
…01011010011011101
31021100010120012000102
430120330023103131
5204221123030023
610040024310445
7650445303461
oct143074132335
937303505012
1013303330013
115707423816
1226b3312425
13134019740c
14902b684a1
1552cdbc628
hex318f0b4dd

13303330013 has 4 divisors (see below), whose sum is σ = 13303861980. Its totient is φ = 13302798048.

The previous prime is 13303329989. The next prime is 13303330037. The reversal of 13303330013 is 31003330331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31003330331 = 91373393163.

It is an interprime number because it is at equal distance from previous prime (13303329989) and next prime (13303330037).

It can be written as a sum of positive squares in 2 ways, for example, as 2308129849 + 10995200164 = 48043^2 + 104858^2 .

It is a cyclic number.

It is not a de Polignac number, because 13303330013 - 28 = 13303329757 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 (13303330043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226520 + ... + 279137.

It is an arithmetic number, because the mean of its divisors is an integer number (3325965495).

Almost surely, 213303330013 is an apocalyptic number.

It is an amenable number.

13303330013 is a deficient number, since it is larger than the sum of its proper divisors (531967).

13303330013 is an equidigital number, since it uses as much as digits as its factorization.

13303330013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531966.

The product of its (nonzero) digits is 729, while the sum is 20.

Adding to 13303330013 its reverse (31003330331), we get a palindrome (44306660344).

The spelling of 13303330013 in words is "thirteen billion, three hundred three million, three hundred thirty thousand, thirteen".

Divisors: 1 26309 505657 13303330013