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13432315231 = 439139921871
BaseRepresentation
bin11001000001010000…
…01101110101011111
31021200010021022110201
430200220031311133
5210002133041411
610100513044331
7653602536616
oct144050156537
937603238421
1013432315231
115773212275
12272a5566a7
131360b1902a
14915d4287d
1553939a3c1
hex320a0dd5f

13432315231 has 8 divisors (see below), whose sum is σ = 13473152000. Its totient is φ = 13391525880.

The previous prime is 13432315223. The next prime is 13432315243. The reversal of 13432315231 is 13251323431.

13432315231 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 13432315231 - 23 = 13432315223 is a prime.

It is a super-2 number, since 2×134323152312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13432315231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13432310231) 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, 603226 + ... + 625096.

It is an arithmetic number, because the mean of its divisors is an integer number (1684144000).

Almost surely, 213432315231 is an apocalyptic number.

13432315231 is a deficient number, since it is larger than the sum of its proper divisors (40836769).

13432315231 is a wasteful number, since it uses less digits than its factorization.

13432315231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23709.

The product of its digits is 6480, while the sum is 28.

Adding to 13432315231 its reverse (13251323431), we get a palindrome (26683638662).

The spelling of 13432315231 in words is "thirteen billion, four hundred thirty-two million, three hundred fifteen thousand, two hundred thirty-one".

Divisors: 1 439 1399 21871 614161 9601369 30597529 13432315231