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30232303121 = 68344263987
BaseRepresentation
bin11100001001111111…
…000101011000010001
32220000221102010100102
4130021333011120101
5443403432144441
621515531102145
72120120223266
oct341177053021
986027363312
1030232303121
111190438a889
125a388a1955
132b0a54c777
14166b23926d
15bbe21469b
hex709fc5611

30232303121 has 4 divisors (see below), whose sum is σ = 30276567792. Its totient is φ = 30188038452.

The previous prime is 30232303117. The next prime is 30232303151. The reversal of 30232303121 is 12130323203.

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 a cyclic number.

It is not a de Polignac number, because 30232303121 - 22 = 30232303117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30232303093 and 30232303102.

It is not an unprimeable number, because it can be changed into a prime (30232303151) 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, 22131311 + ... + 22132676.

It is an arithmetic number, because the mean of its divisors is an integer number (7569141948).

Almost surely, 230232303121 is an apocalyptic number.

It is an amenable number.

30232303121 is a deficient number, since it is larger than the sum of its proper divisors (44264671).

30232303121 is an equidigital number, since it uses as much as digits as its factorization.

30232303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44264670.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30232303121 its reverse (12130323203), we get a palindrome (42362626324).

The spelling of 30232303121 in words is "thirty billion, two hundred thirty-two million, three hundred three thousand, one hundred twenty-one".

Divisors: 1 683 44263987 30232303121