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13313305213 = 131024100401
BaseRepresentation
bin11000110011000100…
…01110101001111101
31021100211022222102021
430121202032221331
5204231201231323
610041022200141
7650626140625
oct143142165175
937324288367
1013313305213
11571201728a
1226b6723051
13134227a8c0
14904203885
1552dbdd05d
hex31988ea7d

13313305213 has 4 divisors (see below), whose sum is σ = 14337405628. Its totient is φ = 12289204800.

The previous prime is 13313305199. The next prime is 13313305223. The reversal of 13313305213 is 31250331331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31250331331 = 202915401839.

It can be written as a sum of positive squares in 2 ways, for example, as 7170194329 + 6143110884 = 84677^2 + 78378^2 .

It is a cyclic number.

It is not a de Polignac number, because 13313305213 - 217 = 13313174141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13313305223) 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, 512050188 + ... + 512050213.

It is an arithmetic number, because the mean of its divisors is an integer number (3584351407).

Almost surely, 213313305213 is an apocalyptic number.

13313305213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13313305213 is a deficient number, since it is larger than the sum of its proper divisors (1024100415).

13313305213 is a wasteful number, since it uses less digits than its factorization.

13313305213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024100414.

The product of its (nonzero) digits is 2430, while the sum is 25.

Adding to 13313305213 its reverse (31250331331), we get a palindrome (44563636544).

The spelling of 13313305213 in words is "thirteen billion, three hundred thirteen million, three hundred five thousand, two hundred thirteen".

Divisors: 1 13 1024100401 13313305213