Search a number
-
+
213230041 is a prime number
BaseRepresentation
bin11001011010110…
…10000111011001
3112212020012121221
430231122013121
5414041330131
633054132041
75166265633
oct1455320731
9485205557
10213230041
11aa3a9982
125b4b1021
133523a12b
1420467a53
1513abe411
hexcb5a1d9

213230041 has 2 divisors, whose sum is σ = 213230042. Its totient is φ = 213230040.

The previous prime is 213230009. The next prime is 213230047. The reversal of 213230041 is 140032312.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197262025 + 15968016 = 14045^2 + 3996^2 .

It is a cyclic number.

It is not a de Polignac number, because 213230041 - 25 = 213230009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213229997 and 213230024.

It is not a weakly prime, because it can be changed into another prime (213230047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106615020 + 106615021.

It is an arithmetic number, because the mean of its divisors is an integer number (106615021).

Almost surely, 2213230041 is an apocalyptic number.

It is an amenable number.

213230041 is a deficient number, since it is larger than the sum of its proper divisors (1).

213230041 is an equidigital number, since it uses as much as digits as its factorization.

213230041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 213230041 is about 14602.3984673751. The cubic root of 213230041 is about 597.4241808990.

Adding to 213230041 its reverse (140032312), we get a palindrome (353262353).

The spelling of 213230041 in words is "two hundred thirteen million, two hundred thirty thousand, forty-one".