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212333241 = 3223433733
BaseRepresentation
bin11001010011111…
…11001010111001
3112210112122110010
430221333022321
5413324130431
633023012133
75155542231
oct1451771271
9483478403
10212333241
11a994711a
125b13a049
1334cb4b93
14202b2cc1
1513993846
hexca7f2b9

212333241 has 16 divisors (see below), whose sum is σ = 285426176. Its totient is φ = 140403456.

The previous prime is 212333221. The next prime is 212333249. The reversal of 212333241 is 142333212.

It is not a de Polignac number, because 212333241 - 214 = 212316857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212333249) 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 15 ways as a sum of consecutive naturals, for example, 289311 + ... + 290043.

It is an arithmetic number, because the mean of its divisors is an integer number (17839136).

Almost surely, 2212333241 is an apocalyptic number.

It is an amenable number.

212333241 is a deficient number, since it is larger than the sum of its proper divisors (73092935).

212333241 is a wasteful number, since it uses less digits than its factorization.

212333241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392.

The product of its digits is 864, while the sum is 21.

The square root of 212333241 is about 14571.6588280127. The cubic root of 212333241 is about 596.5854578087.

Adding to 212333241 its reverse (142333212), we get a palindrome (354666453).

The spelling of 212333241 in words is "two hundred twelve million, three hundred thirty-three thousand, two hundred forty-one".

Divisors: 1 3 223 433 669 733 1299 2199 96559 163459 289677 317389 490377 952167 70777747 212333241