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12232455211 = 99712269263
BaseRepresentation
bin10110110010001110…
…00111010000101011
31011120111112002221201
423121013013100223
5200023002031321
65341451545031
7612063103504
oct133107072053
934514462851
1012232455211
1152079a1719
12245475b177
1311cc3734a2
1484084bbab
154b8d8b291
hex2d91c742b

12232455211 has 4 divisors (see below), whose sum is σ = 12244725472. Its totient is φ = 12220184952.

The previous prime is 12232455197. The next prime is 12232455241. The reversal of 12232455211 is 11255423221.

It is a happy number.

12232455211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12232455211 is a prime.

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 12232455211.

It is not an unprimeable number, because it can be changed into a prime (12232455241) 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 3 ways as a sum of consecutive naturals, for example, 6133635 + ... + 6135628.

It is an arithmetic number, because the mean of its divisors is an integer number (3061181368).

Almost surely, 212232455211 is an apocalyptic number.

12232455211 is a deficient number, since it is larger than the sum of its proper divisors (12270261).

12232455211 is an equidigital number, since it uses as much as digits as its factorization.

12232455211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12270260.

The product of its digits is 4800, while the sum is 28.

Adding to 12232455211 its reverse (11255423221), we get a palindrome (23487878432).

The spelling of 12232455211 in words is "twelve billion, two hundred thirty-two million, four hundred fifty-five thousand, two hundred eleven".

Divisors: 1 997 12269263 12232455211