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212023314 = 23222951437
BaseRepresentation
bin11001010001100…
…11100000010010
3112202221220022100
430220303200102
5413234221224
633012221230
75153111526
oct1450634022
9482856270
10212023314
11a9755288
125b00a816
1334c06aa9
1420231d86
1513931ac9
hexca33812

212023314 has 24 divisors (see below), whose sum is σ = 461398860. Its totient is φ = 70364448.

The previous prime is 212023313. The next prime is 212023327. The reversal of 212023314 is 413320212.

It can be written as a sum of positive squares in 2 ways, for example, as 150479289 + 61544025 = 12267^2 + 7845^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (212023313) 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 11 ways as a sum of consecutive naturals, for example, 21597 + ... + 29840.

Almost surely, 2212023314 is an apocalyptic number.

212023314 is an abundant number, since it is smaller than the sum of its proper divisors (249375546).

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

212023314 is a wasteful number, since it uses less digits than its factorization.

212023314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51674 (or 51671 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 212023314 is about 14561.0203625982. The cubic root of 212023314 is about 596.2950526985.

Adding to 212023314 its reverse (413320212), we get a palindrome (625343526).

The spelling of 212023314 in words is "two hundred twelve million, twenty-three thousand, three hundred fourteen".

Divisors: 1 2 3 6 9 18 229 458 687 1374 2061 4122 51437 102874 154311 308622 462933 925866 11779073 23558146 35337219 70674438 106011657 212023314