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12243020213 = 34754716449
BaseRepresentation
bin10110110011011110…
…11010100110110101
31011121020101212102002
423121233122212311
5200033203121323
65342510225045
7612251645324
oct133157324665
934536355362
1012243020213
115212958326
1224581b5185
131201602278
14841ddc0bb
154b9c76828
hex2d9bda9b5

12243020213 has 8 divisors (see below), whose sum is σ = 12282451200. Its totient is φ = 12203613760.

The previous prime is 12243020201. The next prime is 12243020261. The reversal of 12243020213 is 31202034221.

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 12243020213 - 26 = 12243020149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12243023213) 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, 1895213 + ... + 1901661.

It is an arithmetic number, because the mean of its divisors is an integer number (1535306400).

Almost surely, 212243020213 is an apocalyptic number.

It is an amenable number.

12243020213 is a deficient number, since it is larger than the sum of its proper divisors (39430987).

12243020213 is an equidigital number, since it uses as much as digits as its factorization.

12243020213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12267.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12243020213 its reverse (31202034221), we get a palindrome (43445054434).

The spelling of 12243020213 in words is "twelve billion, two hundred forty-three million, twenty thousand, two hundred thirteen".

Divisors: 1 347 5471 6449 1898437 2237803 35282479 12243020213