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212102202 = 23137934421
BaseRepresentation
bin11001010010001…
…10110000111010
3112210002220112010
430221012300322
5413244232302
633014030350
75153560524
oct1451066072
9483086463
10212102202
11a97a9584
125b0483b6
1334c33980
1420252a14
151394a16c
hexca46c3a

212102202 has 32 divisors (see below), whose sum is σ = 462631680. Its totient is φ = 64434240.

The previous prime is 212102197. The next prime is 212102203. The reversal of 212102202 is 202201212.

212102202 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212102203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11049 + ... + 23372.

It is an arithmetic number, because the mean of its divisors is an integer number (14457240).

Almost surely, 2212102202 is an apocalyptic number.

212102202 is an abundant number, since it is smaller than the sum of its proper divisors (250529478).

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

212102202 is a wasteful number, since it uses less digits than its factorization.

212102202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34518.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 212102202 is about 14563.7289867671. The cubic root of 212102202 is about 596.3689984834.

Adding to 212102202 its reverse (202201212), we get a palindrome (414303414).

The spelling of 212102202 in words is "two hundred twelve million, one hundred two thousand, two hundred two".

Divisors: 1 2 3 6 13 26 39 78 79 158 237 474 1027 2054 3081 6162 34421 68842 103263 206526 447473 894946 1342419 2684838 2719259 5438518 8157777 16315554 35350367 70700734 106051101 212102202