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204331212 = 22326193047
BaseRepresentation
bin11000010110111…
…01100011001100
3112020111002201200
430023131203030
5404302044322
632135305500
75030533551
oct1413354314
9466432650
10204331212
11a5381078
125851b290
1333442857
141d1cca28
1512e128ac
hexc2dd8cc

204331212 has 36 divisors (see below), whose sum is σ = 524976816. Its totient is φ = 66993120.

The previous prime is 204331133. The next prime is 204331213. The reversal of 204331212 is 212133402.

204331212 is a `hidden beast` number, since 20 + 433 + 1 + 212 = 666.

204331212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (204331213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44328 + ... + 48719.

Almost surely, 2204331212 is an apocalyptic number.

It is an amenable number.

204331212 is an abundant number, since it is smaller than the sum of its proper divisors (320645604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204331212 is a wasteful number, since it uses less digits than its factorization.

204331212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93118 (or 93113 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 204331212 is about 14294.4468938116. The cubic root of 204331212 is about 588.9949488548.

Adding to 204331212 its reverse (212133402), we get a palindrome (416464614).

The spelling of 204331212 in words is "two hundred four million, three hundred thirty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 61 122 183 244 366 549 732 1098 2196 93047 186094 279141 372188 558282 837423 1116564 1674846 3349692 5675867 11351734 17027601 22703468 34055202 51082803 68110404 102165606 204331212