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204230030 = 25109187367
BaseRepresentation
bin11000010110001…
…00110110001110
3112020021221221012
430023010312032
5404240330110
632133205222
75026632554
oct1413046616
9466257835
10204230030
11a5312054
1258490812
1333408794
141d1a3bd4
1512de2905
hexc2c4d8e

204230030 has 16 divisors (see below), whose sum is σ = 370988640. Its totient is φ = 80942112.

The previous prime is 204230023. The next prime is 204230051. The reversal of 204230030 is 30032402.

It is a junction number, because it is equal to n+sod(n) for n = 204229987 and 204230014.

It is a congruent number.

It is an unprimeable number.

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, 92594 + ... + 94773.

It is an arithmetic number, because the mean of its divisors is an integer number (23186790).

Almost surely, 2204230030 is an apocalyptic number.

204230030 is a deficient number, since it is larger than the sum of its proper divisors (166758610).

204230030 is a wasteful number, since it uses less digits than its factorization.

204230030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187483.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 204230030 is about 14290.9072490168. The cubic root of 204230030 is about 588.8977120759.

Adding to 204230030 its reverse (30032402), we get a palindrome (234262432).

The spelling of 204230030 in words is "two hundred four million, two hundred thirty thousand, thirty".

Divisors: 1 2 5 10 109 218 545 1090 187367 374734 936835 1873670 20423003 40846006 102115015 204230030