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12313333230 = 23511193753077
BaseRepresentation
bin10110111011110111…
…01000110111101110
31011210010201010201220
423131323220313232
5200204203130410
65353501244210
7614064414462
oct133573506756
934703633656
1012313333230
115249612560
122477863666
1312130503c3
1484b4a24a2
154c1015070
hex2ddee8dee

12313333230 has 128 divisors (see below), whose sum is σ = 34853137920. Its totient is φ = 2751459840.

The previous prime is 12313333177. The next prime is 12313333247. The reversal of 12313333230 is 3233331321.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12313333230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 205452 + ... + 258528.

It is an arithmetic number, because the mean of its divisors is an integer number (272290140).

Almost surely, 212313333230 is an apocalyptic number.

12313333230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12313333230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17426568960).

12313333230 is an abundant number, since it is smaller than the sum of its proper divisors (22539804690).

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

12313333230 is a wasteful number, since it uses less digits than its factorization.

12313333230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53154.

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 12313333230 its reverse (3233331321), we get a palindrome (15546664551).

It can be divided in two parts, 12313 and 333230, that added together give a palindrome (345543).

The spelling of 12313333230 in words is "twelve billion, three hundred thirteen million, three hundred thirty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 19 22 30 33 37 38 55 57 66 74 95 110 111 114 165 185 190 209 222 285 330 370 407 418 555 570 627 703 814 1045 1110 1221 1254 1406 2035 2090 2109 2442 3135 3515 4070 4218 6105 6270 7030 7733 10545 12210 15466 21090 23199 38665 46398 53077 77330 106154 115995 159231 231990 265385 318462 530770 583847 796155 1008463 1167694 1592310 1751541 1963849 2016926 2919235 3025389 3503082 3927698 5042315 5838470 5891547 6050778 8757705 9819245 10084630 11093093 11783094 15126945 17515410 19638490 21602339 22186186 29457735 30253890 33279279 37313131 43204678 55465465 58915470 64807017 66558558 74626262 108011695 110930930 111939393 129614034 166396395 186565655 216023390 223878786 324035085 332792790 373131310 410444441 559696965 648070170 820888882 1119393930 1231333323 2052222205 2462666646 4104444410 6156666615 12313333230