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13230264631 = 231075375971
BaseRepresentation
bin11000101001001010…
…11101000100110111
31021011001002002011011
430110211131010313
5204043421432011
610024454253051
7645600252043
oct142445350467
937131062134
1013230264631
11567a159701
122692957187
13132acc456c
148d7189023
15526788621
hex31495d137

13230264631 has 8 divisors (see below), whose sum is σ = 13934519424. Its totient is φ = 12536762040.

The previous prime is 13230264629. The next prime is 13230264659. The reversal of 13230264631 is 13646203231.

13230264631 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 a cyclic number.

It is not a de Polignac number, because 13230264631 - 21 = 13230264629 is a prime.

It is a super-2 number, since 2×132302646312 (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 = 13230264593 and 13230264602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13230264611) 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, 2685525 + ... + 2690446.

It is an arithmetic number, because the mean of its divisors is an integer number (1741814928).

Almost surely, 213230264631 is an apocalyptic number.

13230264631 is a deficient number, since it is larger than the sum of its proper divisors (704254793).

13230264631 is a wasteful number, since it uses less digits than its factorization.

13230264631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5376101.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 13230264631 its reverse (13646203231), we get a palindrome (26876467862).

The spelling of 13230264631 in words is "thirteen billion, two hundred thirty million, two hundred sixty-four thousand, six hundred thirty-one".

Divisors: 1 23 107 2461 5375971 123647333 575228897 13230264631