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30343003221 = 310114334407
BaseRepresentation
bin11100010000100101…
…010111110001010101
32220022122201021100010
4130100211113301111
5444120302100341
621534523510433
72122633162146
oct342045276125
986278637303
1030343003221
111196091a473
125a69988419
132b2746b69b
14167bc13acd
15bc8cce716
hex710957c55

30343003221 has 4 divisors (see below), whose sum is σ = 40457337632. Its totient is φ = 20228668812.

The previous prime is 30343003219. The next prime is 30343003247. The reversal of 30343003221 is 12230034303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30343003221 - 21 = 30343003219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30343003321) 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, 5057167201 + ... + 5057167206.

It is an arithmetic number, because the mean of its divisors is an integer number (10114334408).

Almost surely, 230343003221 is an apocalyptic number.

It is an amenable number.

30343003221 is a deficient number, since it is larger than the sum of its proper divisors (10114334411).

30343003221 is a wasteful number, since it uses less digits than its factorization.

30343003221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10114334410.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 30343003221 its reverse (12230034303), we get a palindrome (42573037524).

The spelling of 30343003221 in words is "thirty billion, three hundred forty-three million, three thousand, two hundred twenty-one".

Divisors: 1 3 10114334407 30343003221