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12203234344 = 2371971106167
BaseRepresentation
bin10110101110101111…
…01001010000101000
31011111110112112110101
423113113221100220
5144443011444334
65334525355144
7611256531460
oct132727512050
934443475411
1012203234344
1151a2453644
122446a08ab4
1311c62b2032
1483aa02ba0
154b6518214
hex2d75e9428

12203234344 has 32 divisors (see below), whose sum is σ = 26282551680. Its totient is φ = 5203404864.

The previous prime is 12203234341. The next prime is 12203234363. The reversal of 12203234344 is 44343230221.

12203234344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×122032343442 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (12203234341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542052 + ... + 564115.

It is an arithmetic number, because the mean of its divisors is an integer number (821329740).

Almost surely, 212203234344 is an apocalyptic number.

12203234344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12203234344 is an abundant number, since it is smaller than the sum of its proper divisors (14079317336).

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

12203234344 is a wasteful number, since it uses less digits than its factorization.

12203234344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106377 (or 1106373 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 12203234344 its reverse (44343230221), we get a palindrome (56546464565).

The spelling of 12203234344 in words is "twelve billion, two hundred three million, two hundred thirty-four thousand, three hundred forty-four".

Divisors: 1 2 4 7 8 14 28 56 197 394 788 1379 1576 2758 5516 11032 1106167 2212334 4424668 7743169 8849336 15486338 30972676 61945352 217914899 435829798 871659596 1525404293 1743319192 3050808586 6101617172 12203234344