Search a number
-
+
212333041 = 297321829
BaseRepresentation
bin11001010011111…
…11000111110001
3112210112122011201
430221333013301
5413324124131
633023011201
75155541524
oct1451770761
9483478151
10212333041
11a9946a58
125b139b01
1334cb4a6b
14202b2bbb
1513993761
hexca7f1f1

212333041 has 4 divisors (see below), whose sum is σ = 219654900. Its totient is φ = 205011184.

The previous prime is 212333039. The next prime is 212333059. The reversal of 212333041 is 140333212.

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 174768400 + 37564641 = 13220^2 + 6129^2 .

It is a cyclic number.

It is not a de Polignac number, because 212333041 - 21 = 212333039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212333071) 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, 3660886 + ... + 3660943.

It is an arithmetic number, because the mean of its divisors is an integer number (54913725).

Almost surely, 2212333041 is an apocalyptic number.

It is an amenable number.

212333041 is a deficient number, since it is larger than the sum of its proper divisors (7321859).

212333041 is an equidigital number, since it uses as much as digits as its factorization.

212333041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7321858.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 212333041 is about 14571.6519653744. The cubic root of 212333041 is about 596.5852704976.

Adding to 212333041 its reverse (140333212), we get a palindrome (352666253).

The spelling of 212333041 in words is "two hundred twelve million, three hundred thirty-three thousand, forty-one".

Divisors: 1 29 7321829 212333041