Search a number
-
+
12230213331 = 37582391111
BaseRepresentation
bin10110110001111101…
…00011111011010011
31011120100022012200010
423120332203323103
5200021413311311
65341331530003
7612035045430
oct133076437323
934510265603
1012230213331
115206700326
122453a59903
1311cba69c2b
14840426b87
154b8a96da6
hex2d8fa3ed3

12230213331 has 8 divisors (see below), whose sum is σ = 18636515584. Its totient is φ = 6988693320.

The previous prime is 12230213327. The next prime is 12230213353. The reversal of 12230213331 is 13331203221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12230213331 - 22 = 12230213327 is a prime.

It is a super-2 number, since 2×122302133312 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 582391111 = 12230213331 / (1 + 2 + 2 + 3 + 0 + 2 + 1 + 3 + 3 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12230213298 and 12230213307.

It is not an unprimeable number, because it can be changed into a prime (12230213311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291195535 + ... + 291195576.

It is an arithmetic number, because the mean of its divisors is an integer number (2329564448).

Almost surely, 212230213331 is an apocalyptic number.

12230213331 is a deficient number, since it is larger than the sum of its proper divisors (6406302253).

12230213331 is an equidigital number, since it uses as much as digits as its factorization.

12230213331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582391121.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12230213331 its reverse (13331203221), we get a palindrome (25561416552).

The spelling of 12230213331 in words is "twelve billion, two hundred thirty million, two hundred thirteen thousand, three hundred thirty-one".

Divisors: 1 3 7 21 582391111 1747173333 4076737777 12230213331