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243235030 = 2545495347
BaseRepresentation
bin11100111111101…
…11100011010110
3121221200121201211
432133313203112
5444232010110
640045212034
76012315013
oct1637674326
9557617654
10243235030
11115333095
126956101a
133b51446c
142443870a
151654998a
hexe7f78d6

243235030 has 16 divisors (see below), whose sum is σ = 438001200. Its totient is φ = 97254432.

The previous prime is 243235009. The next prime is 243235043. The reversal of 243235030 is 30532342.

It is a junction number, because it is equal to n+sod(n) for n = 243234992 and 243235010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42817 + ... + 48163.

It is an arithmetic number, because the mean of its divisors is an integer number (27375075).

Almost surely, 2243235030 is an apocalyptic number.

243235030 is a deficient number, since it is larger than the sum of its proper divisors (194766170).

243235030 is a wasteful number, since it uses less digits than its factorization.

243235030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9903.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 243235030 is about 15595.9940369314. The cubic root of 243235030 is about 624.2262681377.

Adding to 243235030 its reverse (30532342), we get a palindrome (273767372).

The spelling of 243235030 in words is "two hundred forty-three million, two hundred thirty-five thousand, thirty".

Divisors: 1 2 5 10 4549 5347 9098 10694 22745 26735 45490 53470 24323503 48647006 121617515 243235030