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30230011321 = 37817027333
BaseRepresentation
bin11100001001110110…
…010101110110111001
32220000210002200120221
4130021312111312321
5443402340330241
621515410020041
72120061566536
oct341166256671
986023080527
1030230011321
1111903064a34
125a37b77621
132b09c29583
14166abddd8d
15bbde105d1
hex709d95db9

30230011321 has 4 divisors (see below), whose sum is σ = 31047038692. Its totient is φ = 29412983952.

The previous prime is 30230011289. The next prime is 30230011327. The reversal of 30230011321 is 12311003203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11573456400 + 18656554921 = 107580^2 + 136589^2 .

It is a cyclic number.

It is not a de Polignac number, because 30230011321 - 25 = 30230011289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30230011295 and 30230011304.

It is not an unprimeable number, because it can be changed into a prime (30230011327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408513630 + ... + 408513703.

It is an arithmetic number, because the mean of its divisors is an integer number (7761759673).

Almost surely, 230230011321 is an apocalyptic number.

It is an amenable number.

30230011321 is a deficient number, since it is larger than the sum of its proper divisors (817027371).

30230011321 is an equidigital number, since it uses as much as digits as its factorization.

30230011321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817027370.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30230011321 its reverse (12311003203), we get a palindrome (42541014524).

The spelling of 30230011321 in words is "thirty billion, two hundred thirty million, eleven thousand, three hundred twenty-one".

Divisors: 1 37 817027333 30230011321