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212314312 = 23710336809
BaseRepresentation
bin11001010011110…
…10100011001000
3112210111200111001
430221322203020
5413323024222
633022344344
75155433110
oct1451724310
9483450431
10212314312
11a9933981
125b12b0b4
1334ca9392
14202aa040
151398ce27
hexca7a8c8

212314312 has 32 divisors (see below), whose sum is σ = 459388800. Its totient is φ = 90105984.

The previous prime is 212314253. The next prime is 212314331. The reversal of 212314312 is 213413212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 212314312.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12637 + ... + 24172.

It is an arithmetic number, because the mean of its divisors is an integer number (14355900).

Almost surely, 2212314312 is an apocalyptic number.

It is an amenable number.

212314312 is an abundant number, since it is smaller than the sum of its proper divisors (247074488).

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

212314312 is a wasteful number, since it uses less digits than its factorization.

212314312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36925 (or 36921 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 212314312 is about 14571.0092992901. The cubic root of 212314312 is about 596.5677292269.

Adding to 212314312 its reverse (213413212), we get a palindrome (425727524).

The spelling of 212314312 in words is "two hundred twelve million, three hundred fourteen thousand, three hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 103 206 412 721 824 1442 2884 5768 36809 73618 147236 257663 294472 515326 1030652 2061304 3791327 7582654 15165308 26539289 30330616 53078578 106157156 212314312