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13031210213 = 74913791449
BaseRepresentation
bin11000010001011100…
…00111110011100101
31020122011112001211022
430020232013303211
5203141442211323
65553024020525
7640632313340
oct141056076345
936564461738
1013031210213
11558786211a
122638161745
1312c89ab798
148b8971457
155140694c8
hex308b87ce5

13031210213 has 8 divisors (see below), whose sum is σ = 14923147200. Its totient is φ = 11146857120.

The previous prime is 13031210207. The next prime is 13031210221. The reversal of 13031210213 is 31201213031.

13031210213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13031210213 - 220 = 13030161637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13031210191 and 13031210200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031210293) 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 7 ways as a sum of consecutive naturals, for example, 1892288 + ... + 1899161.

It is an arithmetic number, because the mean of its divisors is an integer number (1865393400).

Almost surely, 213031210213 is an apocalyptic number.

It is an amenable number.

13031210213 is a deficient number, since it is larger than the sum of its proper divisors (1891936987).

13031210213 is an equidigital number, since it uses as much as digits as its factorization.

13031210213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3791947.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13031210213 its reverse (31201213031), we get a palindrome (44232423244).

The spelling of 13031210213 in words is "thirteen billion, thirty-one million, two hundred ten thousand, two hundred thirteen".

Divisors: 1 7 491 3437 3791449 26540143 1861601459 13031210213