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304240230 = 232573371433
BaseRepresentation
bin10010001000100…
…101011001100110
3210012111000010200
4102020211121212
51110341141410
650104531330
710352666520
oct2210453146
9705430120
10304240230
11146810208
1285a80b46
134b053b08
142c598a10
151ba9a3c0
hex12225666

304240230 has 96 divisors (see below), whose sum is σ = 907343424. Its totient is φ = 69285888.

The previous prime is 304240219. The next prime is 304240249. The reversal of 304240230 is 32042403.

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

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 211594 + ... + 213026.

It is an arithmetic number, because the mean of its divisors is an integer number (9451494).

Almost surely, 2304240230 is an apocalyptic number.

304240230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 304240230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453671712).

304240230 is an abundant number, since it is smaller than the sum of its proper divisors (603103194).

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

304240230 is a wasteful number, since it uses less digits than its factorization.

304240230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790 (or 1787 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 304240230 is about 17442.4834814312. The cubic root of 304240230 is about 672.5721503736.

Adding to 304240230 its reverse (32042403), we get a palindrome (336282633).

The spelling of 304240230 in words is "three hundred four million, two hundred forty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 337 630 674 1011 1433 1685 2022 2359 2866 3033 3370 4299 4718 5055 6066 7077 7165 8598 10031 10110 11795 12897 14154 14330 15165 20062 21231 21495 23590 25794 30093 30330 35385 42462 42990 50155 60186 64485 70770 90279 100310 106155 128970 150465 180558 212310 300930 451395 482921 902790 965842 1448763 2414605 2897526 3380447 4346289 4829210 6760894 7243815 8692578 10141341 14487630 16902235 20282682 21731445 30424023 33804470 43462890 50706705 60848046 101413410 152120115 304240230