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13330131233 = 19169791263
BaseRepresentation
bin11000110101000100…
…11010100100100001
31021101222222211101012
430122202122210201
5204300003144413
610042422550305
7651222150236
oct143242324441
937358884335
1013330131233
115720569991
122700298395
1313458bc423
1490654378d
155304137a8
hex31a89a921

13330131233 has 4 divisors (see below), whose sum is σ = 13399922688. Its totient is φ = 13260339780.

The previous prime is 13330131187. The next prime is 13330131251. The reversal of 13330131233 is 33213103331.

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 13330131233 - 218 = 13329869089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13330131199 and 13330131208.

It is not an unprimeable number, because it can be changed into a prime (13330131263) 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, 34895441 + ... + 34895822.

It is an arithmetic number, because the mean of its divisors is an integer number (3349980672).

Almost surely, 213330131233 is an apocalyptic number.

It is an amenable number.

13330131233 is a deficient number, since it is larger than the sum of its proper divisors (69791455).

13330131233 is an equidigital number, since it uses as much as digits as its factorization.

13330131233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69791454.

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

Adding to 13330131233 its reverse (33213103331), we get a palindrome (46543234564).

The spelling of 13330131233 in words is "thirteen billion, three hundred thirty million, one hundred thirty-one thousand, two hundred thirty-three".

Divisors: 1 191 69791263 13330131233