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12130311445 = 571971759291
BaseRepresentation
bin10110100110000010…
…11101110100010101
31011022101022200001021
423103001131310111
5144320324431240
65323402401141
7606412642330
oct132301356425
934271280037
1012130311445
11516527658a
1224265001b1
1311b415bca5
1483105d617
154aee1154a
hex2d305dd15

12130311445 has 16 divisors (see below), whose sum is σ = 16720311168. Its totient is φ = 8275700160.

The previous prime is 12130311433. The next prime is 12130311497. The reversal of 12130311445 is 54411303121.

12130311445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12130311445 - 27 = 12130311317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 872751 + ... + 886540.

It is an arithmetic number, because the mean of its divisors is an integer number (1045019448).

Almost surely, 212130311445 is an apocalyptic number.

It is an amenable number.

12130311445 is a deficient number, since it is larger than the sum of its proper divisors (4589999723).

12130311445 is a wasteful number, since it uses less digits than its factorization.

12130311445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759500.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 12130311445 its reverse (54411303121), we get a palindrome (66541614566).

The spelling of 12130311445 in words is "twelve billion, one hundred thirty million, three hundred eleven thousand, four hundred forty-five".

Divisors: 1 5 7 35 197 985 1379 6895 1759291 8796455 12315037 61575185 346580327 1732901635 2426062289 12130311445