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212430343 = 1491425707
BaseRepresentation
bin11001010100101…
…10111000000111
3112210201120122111
430222112320013
5413340232333
633025041451
75156425306
oct1452267007
9483646574
10212430343
11a9a03074
125b186287
133501a138
14202da43d
15139b24cd
hexca96e07

212430343 has 4 divisors (see below), whose sum is σ = 213856200. Its totient is φ = 211004488.

The previous prime is 212430341. The next prime is 212430347. The reversal of 212430343 is 343034212.

It is a happy number.

212430343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212430343 - 21 = 212430341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212430341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712705 + ... + 713002.

It is an arithmetic number, because the mean of its divisors is an integer number (53464050).

Almost surely, 2212430343 is an apocalyptic number.

212430343 is a deficient number, since it is larger than the sum of its proper divisors (1425857).

212430343 is a wasteful number, since it uses less digits than its factorization.

212430343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425856.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 212430343 is about 14574.9903258973. The cubic root of 212430343 is about 596.6763853408.

Adding to 212430343 its reverse (343034212), we get a palindrome (555464555).

The spelling of 212430343 in words is "two hundred twelve million, four hundred thirty thousand, three hundred forty-three".

Divisors: 1 149 1425707 212430343