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300031212 = 223131923277
BaseRepresentation
bin10001111000100…
…001110011101100
3202220120011110010
4101320201303230
51103301444322
645434413220
710302136365
oct2170416354
9686504403
10300031212
111443a5988
1284591210
134a20c080
142bbc0b6c
151b51820c
hex11e21cec

300031212 has 24 divisors (see below), whose sum is σ = 753924976. Its totient is φ = 92317248.

The previous prime is 300031201. The next prime is 300031213. The reversal of 300031212 is 212130003.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (300031213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 961483 + ... + 961794.

Almost surely, 2300031212 is an apocalyptic number.

It is an amenable number.

300031212 is an abundant number, since it is smaller than the sum of its proper divisors (453893764).

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

300031212 is a wasteful number, since it uses less digits than its factorization.

300031212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923297 (or 1923295 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 300031212 is about 17321.4090650847. The cubic root of 300031212 is about 669.4561652118.

Adding to 300031212 its reverse (212130003), we get a palindrome (512161215).

The spelling of 300031212 in words is "three hundred million, thirty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 1923277 3846554 5769831 7693108 11539662 23079324 25002601 50005202 75007803 100010404 150015606 300031212