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12205303143 = 31113122912329
BaseRepresentation
bin10110101110111111…
…00010010101100111
31011111121102122022120
423113133202111213
5144444024200033
65335042001023
7611313236115
oct132737422547
934447378276
1012205303143
1151a36369a0
122447646173
1311c6857887
1483adc0ab5
154b67c61b3
hex2d77e2567

12205303143 has 32 divisors (see below), whose sum is σ = 17968262400. Its totient is φ = 7308038400.

The previous prime is 12205303141. The next prime is 12205303151. The reversal of 12205303143 is 34130350221.

It is not a de Polignac number, because 12205303143 - 21 = 12205303141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12205303141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 983803 + ... + 996131.

It is an arithmetic number, because the mean of its divisors is an integer number (561508200).

Almost surely, 212205303143 is an apocalyptic number.

12205303143 is a deficient number, since it is larger than the sum of its proper divisors (5762959257).

12205303143 is a wasteful number, since it uses less digits than its factorization.

12205303143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12703.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 12205303143 its reverse (34130350221), we get a palindrome (46335653364).

The spelling of 12205303143 in words is "twelve billion, two hundred five million, three hundred three thousand, one hundred forty-three".

Divisors: 1 3 11 33 131 229 393 687 1441 2519 4323 7557 12329 29999 36987 89997 135619 329989 406857 989967 1615099 2823341 4845297 8470023 17766089 31056751 53298267 93170253 369857671 1109573013 4068434381 12205303143