Search a number
-
+
30230233421 is a prime number
BaseRepresentation
bin11100001001110111…
…001100000101001101
32220000210111222020212
4130021313030011031
5443402414432141
621515414452205
72120063513213
oct341167140515
986023458225
1030230233421
11119031a6893
125a38064065
132b09ca66ab
14166ac5acb3
15bbde562eb
hex709dcc14d

30230233421 has 2 divisors, whose sum is σ = 30230233422. Its totient is φ = 30230233420.

The previous prime is 30230233399. The next prime is 30230233441. The reversal of 30230233421 is 12433203203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24480044521 + 5750188900 = 156461^2 + 75830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30230233421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30230233441) 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 as a sum of consecutive naturals, namely, 15115116710 + 15115116711.

It is an arithmetic number, because the mean of its divisors is an integer number (15115116711).

Almost surely, 230230233421 is an apocalyptic number.

It is an amenable number.

30230233421 is a deficient number, since it is larger than the sum of its proper divisors (1).

30230233421 is an equidigital number, since it uses as much as digits as its factorization.

30230233421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 30230233421 its reverse (12433203203), we get a palindrome (42663436624).

The spelling of 30230233421 in words is "thirty billion, two hundred thirty million, two hundred thirty-three thousand, four hundred twenty-one".