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12805182233500 = 225358743629241
BaseRepresentation
bin1011101001010111000001…
…0101101001101110011100
31200100011102011111120201011
42322111300111221232130
53134300003122433000
643122341451425004
72461100232042016
oct272256025515634
950304364446634
1012805182233500
1140977135a42a8
121529891755164
1371b6a61a14c7
14323aba2c11b6
1517315b1642ba
hexba570569b9c

12805182233500 has 48 divisors (see below), whose sum is σ = 28014161771232. Its totient is φ = 5113346928000.

The previous prime is 12805182233497. The next prime is 12805182233617. The reversal of 12805182233500 is 533228150821.

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 15 ways as a sum of consecutive naturals, for example, 21521121 + ... + 22108120.

It is an arithmetic number, because the mean of its divisors is an integer number (583628370234).

Almost surely, 212805182233500 is an apocalyptic number.

12805182233500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12805182233500 is an abundant number, since it is smaller than the sum of its proper divisors (15208979537732).

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

12805182233500 is a wasteful number, since it uses less digits than its factorization.

12805182233500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43629847 (or 43629835 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 12805182233500 in words is "twelve trillion, eight hundred five billion, one hundred eighty-two million, two hundred thirty-three thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 587 1174 2348 2935 5870 11740 14675 29350 58700 73375 146750 293500 43629241 87258482 174516964 218146205 436292410 872584820 1090731025 2181462050 4362924100 5453655125 10907310250 21814620500 25610364467 51220728934 102441457868 128051822335 256103644670 512207289340 640259111675 1280518223350 2561036446700 3201295558375 6402591116750 12805182233500