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204313230 = 232511474391
BaseRepresentation
bin11000010110110…
…01001010001110
3112020110012001200
430023121022032
5404301010410
632135050330
75030430252
oct1413311216
9466405050
10204313230
11a5369610
12585109a6
1333437604
141d1c6262
1512e0c3c0
hexc2d928e

204313230 has 96 divisors (see below), whose sum is σ = 591971328. Its totient is φ = 48465600.

The previous prime is 204313229. The next prime is 204313237. The reversal of 204313230 is 32313402.

204313230 is a `hidden beast` number, since 2 + 0 + 431 + 3 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204313237) 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 47 ways as a sum of consecutive naturals, for example, 44335 + ... + 48725.

It is an arithmetic number, because the mean of its divisors is an integer number (6166368).

Almost surely, 2204313230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204313230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295985664).

204313230 is an abundant number, since it is smaller than the sum of its proper divisors (387658098).

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

204313230 is a wasteful number, since it uses less digits than its factorization.

204313230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4462 (or 4459 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 204313230 is about 14293.8178944605. The cubic root of 204313230 is about 588.9776703428.

Adding to 204313230 its reverse (32313402), we get a palindrome (236626632).

The spelling of 204313230 in words is "two hundred four million, three hundred thirteen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 30 33 45 47 55 66 90 94 99 110 141 165 198 235 282 330 423 470 495 517 705 846 990 1034 1410 1551 2115 2585 3102 4230 4391 4653 5170 7755 8782 9306 13173 15510 21955 23265 26346 39519 43910 46530 48301 65865 79038 96602 131730 144903 197595 206377 241505 289806 395190 412754 434709 483010 619131 724515 869418 1031885 1238262 1449030 1857393 2063770 2173545 2270147 3095655 3714786 4347090 4540294 6191310 6810441 9286965 11350735 13620882 18573930 20431323 22701470 34052205 40862646 68104410 102156615 204313230