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12115233230 = 2543178915749
BaseRepresentation
bin10110100100001111…
…11100100111001110
31011021022221121121212
423102013330213032
5144302444430410
65322103254422
7606140532452
oct132207744716
934238847555
1012115233230
115157808051
12242144a412
1311b0cacb79
1482d056662
154ad933b05
hex2d21fc9ce

12115233230 has 32 divisors (see below), whose sum is σ = 22328460000. Its totient is φ = 4730447232.

The previous prime is 12115233223. The next prime is 12115233301. The reversal of 12115233230 is 3233251121.

It is a junction number, because it is equal to n+sod(n) for n = 12115233196 and 12115233205.

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 15 ways as a sum of consecutive naturals, for example, 761396 + ... + 777144.

It is an arithmetic number, because the mean of its divisors is an integer number (697764375).

Almost surely, 212115233230 is an apocalyptic number.

12115233230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12115233230 is a deficient number, since it is larger than the sum of its proper divisors (10213226770).

12115233230 is a wasteful number, since it uses less digits than its factorization.

12115233230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17588.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 12115233230 its reverse (3233251121), we get a palindrome (15348484351).

The spelling of 12115233230 in words is "twelve billion, one hundred fifteen million, two hundred thirty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 43 86 215 430 1789 3578 8945 15749 17890 31498 76927 78745 153854 157490 384635 677207 769270 1354414 3386035 6772070 28174961 56349922 140874805 281749610 1211523323 2423046646 6057616615 12115233230