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212424306 = 2373484987
BaseRepresentation
bin11001010100101…
…01011001110010
3112210201021100220
430222111121302
5413340034211
633024553510
75156401563
oct1452253162
9483637326
10212424306
11a99a9586
125b182896
1335017473
14202d816a
15139b0806
hexca95672

212424306 has 16 divisors (see below), whose sum is σ = 430669344. Its totient is φ = 69837984.

The previous prime is 212424301. The next prime is 212424319. The reversal of 212424306 is 603424212.

212424306 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212424301) 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, 242056 + ... + 242931.

It is an arithmetic number, because the mean of its divisors is an integer number (26916834).

Almost surely, 2212424306 is an apocalyptic number.

212424306 is an abundant number, since it is smaller than the sum of its proper divisors (218245038).

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

212424306 is a wasteful number, since it uses less digits than its factorization.

212424306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485065.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 212424306 is about 14574.7832230877. The cubic root of 212424306 is about 596.6707330261.

Adding to 212424306 its reverse (603424212), we get a palindrome (815848518).

The spelling of 212424306 in words is "two hundred twelve million, four hundred twenty-four thousand, three hundred six".

Divisors: 1 2 3 6 73 146 219 438 484987 969974 1454961 2909922 35404051 70808102 106212153 212424306