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212423333 = 2237391289
BaseRepresentation
bin11001010100101…
…01001010100101
3112210201020000212
430222111022211
5413340021313
633024545205
75156366003
oct1452251245
9483636025
10212423333
11a99a8881
125b182205
1335016ba5
14202d7a73
15139b03a8
hexca952a5

212423333 has 8 divisors (see below), whose sum is σ = 213830400. Its totient is φ = 211020768.

The previous prime is 212423317. The next prime is 212423353. The reversal of 212423333 is 333324212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212423333 - 24 = 212423317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212423299 and 212423308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212423303) 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 7 ways as a sum of consecutive naturals, for example, 164153 + ... + 165441.

It is an arithmetic number, because the mean of its divisors is an integer number (26728800).

Almost surely, 2212423333 is an apocalyptic number.

It is an amenable number.

212423333 is a deficient number, since it is larger than the sum of its proper divisors (1407067).

212423333 is a wasteful number, since it uses less digits than its factorization.

212423333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251.

The product of its digits is 2592, while the sum is 23.

The square root of 212423333 is about 14574.7498434793. The cubic root of 212423333 is about 596.6698220169.

Adding to 212423333 its reverse (333324212), we get a palindrome (545747545).

The spelling of 212423333 in words is "two hundred twelve million, four hundred twenty-three thousand, three hundred thirty-three".

Divisors: 1 223 739 1289 164797 287447 952571 212423333