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13231033313 = 34738129779
BaseRepresentation
bin11000101001010000…
…11000101111100001
31021011002112010120212
430110220120233201
5204044121031223
610024522543505
7645606633101
oct142450305741
937132463525
1013231033313
11567a634183
122693067b95
13132b2033c4
148d7309201
1552688b278
hex314a18be1

13231033313 has 4 divisors (see below), whose sum is σ = 13269163440. Its totient is φ = 13192903188.

The previous prime is 13231033279. The next prime is 13231033339. The reversal of 13231033313 is 31333013231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13231033313 - 220 = 13229984737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13231033373) 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, 19064543 + ... + 19065236.

It is an arithmetic number, because the mean of its divisors is an integer number (3317290860).

Almost surely, 213231033313 is an apocalyptic number.

It is an amenable number.

13231033313 is a deficient number, since it is larger than the sum of its proper divisors (38130127).

13231033313 is an equidigital number, since it uses as much as digits as its factorization.

13231033313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38130126.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 13231033313 its reverse (31333013231), we get a palindrome (44564046544).

The spelling of 13231033313 in words is "thirteen billion, two hundred thirty-one million, thirty-three thousand, three hundred thirteen".

Divisors: 1 347 38129779 13231033313