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302009212 = 221072632683
BaseRepresentation
bin10010000000000…
…100101101111100
3210001021122202101
4102000010231330
51104303243322
645545034444
710325015221
oct2200045574
9701248671
10302009212
11145526a9a
1285185a24
134a75249b
142c177948
151b7a9327
hex12004b7c

302009212 has 24 divisors (see below), whose sum is σ = 535683456. Its totient is φ = 148969008.

The previous prime is 302009203. The next prime is 302009269. The reversal of 302009212 is 212900203.

It is a happy number.

302009212 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 302009212.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 111223 + ... + 113905.

It is an arithmetic number, because the mean of its divisors is an integer number (22320144).

Almost surely, 2302009212 is an apocalyptic number.

It is an amenable number.

302009212 is a deficient number, since it is larger than the sum of its proper divisors (233674244).

302009212 is a wasteful number, since it uses less digits than its factorization.

302009212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057 (or 3055 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 302009212 is about 17378.4122404781. The cubic root of 302009212 is about 670.9241068717.

Adding to 302009212 its reverse (212900203), we get a palindrome (514909415).

The spelling of 302009212 in words is "three hundred two million, nine thousand, two hundred twelve".

Divisors: 1 2 4 107 214 263 428 526 1052 2683 5366 10732 28141 56282 112564 287081 574162 705629 1148324 1411258 2822516 75502303 151004606 302009212