Search a number
-
+
30323221001 = 128923524609
BaseRepresentation
bin11100001111011001…
…111010001000001001
32220021021111020020022
4130033121322020021
5444100221033001
621532535510225
72122303061063
oct341731721011
986237436208
1030323221001
1111950738827
125a63228375
132b23333428
141679344733
15bc71c311b
hex70f67a209

30323221001 has 4 divisors (see below), whose sum is σ = 30346746900. Its totient is φ = 30299695104.

The previous prime is 30323220979. The next prime is 30323221021. The reversal of 30323221001 is 10012232303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10012232303 = 31132193673.

It can be written as a sum of positive squares in 2 ways, for example, as 16978350601 + 13344870400 = 130301^2 + 115520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30323221001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30323221021) 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, 11761016 + ... + 11763593.

It is an arithmetic number, because the mean of its divisors is an integer number (7586686725).

Almost surely, 230323221001 is an apocalyptic number.

It is an amenable number.

30323221001 is a deficient number, since it is larger than the sum of its proper divisors (23525899).

30323221001 is a wasteful number, since it uses less digits than its factorization.

30323221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23525898.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30323221001 its reverse (10012232303), we get a palindrome (40335453304).

The spelling of 30323221001 in words is "thirty billion, three hundred twenty-three million, two hundred twenty-one thousand, one".

Divisors: 1 1289 23524609 30323221001