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12302323221 = 311336290039
BaseRepresentation
bin10110111010100011…
…01000111000010101
31011202100222202211210
423131101220320111
5200143343320341
65352425252033
7613602010356
oct133521507025
934670882753
1012302323221
115243382581
122474034019
131210996bc6
14849c37d2d
154c008cc16
hex2dd468e15

12302323221 has 8 divisors (see below), whose sum is σ = 16548258240. Its totient is φ = 8128968512.

The previous prime is 12302323217. The next prime is 12302323223. The reversal of 12302323221 is 12232320321.

It is a happy number.

12302323221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12302323221 - 22 = 12302323217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12302323223) 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 7 ways as a sum of consecutive naturals, for example, 18144681 + ... + 18145358.

It is an arithmetic number, because the mean of its divisors is an integer number (2068532280).

Almost surely, 212302323221 is an apocalyptic number.

It is an amenable number.

12302323221 is a deficient number, since it is larger than the sum of its proper divisors (4245935019).

12302323221 is a wasteful number, since it uses less digits than its factorization.

12302323221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36290155.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12302323221 its reverse (12232320321), we get a palindrome (24534643542).

The spelling of 12302323221 in words is "twelve billion, three hundred two million, three hundred twenty-three thousand, two hundred twenty-one".

Divisors: 1 3 113 339 36290039 108870117 4100774407 12302323221