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12234430205 = 517143934473
BaseRepresentation
bin10110110010011101…
…01001011011111101
31011120122020110010122
423121032221123331
5200024003231310
65342002144325
7612115640504
oct133116513375
934518213118
1012234430205
115209020548
1224553520a5
1311cc8b541a
14840c0383b
154b912b555
hex2d93a96fd

12234430205 has 8 divisors (see below), whose sum is σ = 15544923192. Its totient is φ = 9211806208.

The previous prime is 12234430193. The next prime is 12234430223. The reversal of 12234430205 is 50203443221.

It can be written as a sum of positive squares in 4 ways, for example, as 4278860569 + 7955569636 = 65413^2 + 89194^2 .

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 12234430205 - 212 = 12234426109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71967152 + ... + 71967321.

It is an arithmetic number, because the mean of its divisors is an integer number (1943115399).

Almost surely, 212234430205 is an apocalyptic number.

It is an amenable number.

12234430205 is a deficient number, since it is larger than the sum of its proper divisors (3310492987).

12234430205 is a wasteful number, since it uses less digits than its factorization.

12234430205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143934495.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 12234430205 its reverse (50203443221), we get a palindrome (62437873426).

The spelling of 12234430205 in words is "twelve billion, two hundred thirty-four million, four hundred thirty thousand, two hundred five".

Divisors: 1 5 17 85 143934473 719672365 2446886041 12234430205