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205016212 = 22147134843
BaseRepresentation
bin11000011100001…
…00110010010100
3112021202220101001
430032010302110
5404441004322
632202113044
75036415622
oct1416046224
9467686331
10205016212
11a57a9795
12587ab784
133362258b
141d32a512
1512eea827
hexc384c94

205016212 has 12 divisors (see below), whose sum is σ = 359032576. Its totient is φ = 102435480.

The previous prime is 205016197. The next prime is 205016219. The reversal of 205016212 is 212610502.

205016212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 205016212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205016219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11538 + ... + 23305.

Almost surely, 2205016212 is an apocalyptic number.

It is an amenable number.

205016212 is a deficient number, since it is larger than the sum of its proper divisors (154016364).

205016212 is a wasteful number, since it uses less digits than its factorization.

205016212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36318 (or 36316 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 205016212 is about 14318.3871996814. The cubic root of 205016212 is about 589.6523969900.

Adding to 205016212 its reverse (212610502), we get a palindrome (417626714).

The spelling of 205016212 in words is "two hundred five million, sixteen thousand, two hundred twelve".

Divisors: 1 2 4 1471 2942 5884 34843 69686 139372 51254053 102508106 205016212