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2012242447 = 37210131451
BaseRepresentation
bin111011111110000…
…0110001000001111
312012020101111201001
41313330012020033
513110113224242
6531401201131
7100602531025
oct16774061017
95166344631
102012242447
11942949596
12481a901a7
13260b72807
14151364715
15bb9ceeb7
hex77f0620f

2012242447 has 12 divisors (see below), whose sum is σ = 2071565496. Its totient is φ = 1954576800.

The previous prime is 2012242439. The next prime is 2012242499. The reversal of 2012242447 is 7442422102.

It is not a de Polignac number, because 2012242447 - 23 = 2012242439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012242847) 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 11 ways as a sum of consecutive naturals, for example, 1386072 + ... + 1387522.

It is an arithmetic number, because the mean of its divisors is an integer number (172630458).

Almost surely, 22012242447 is an apocalyptic number.

2012242447 is a deficient number, since it is larger than the sum of its proper divisors (59323049).

2012242447 is a wasteful number, since it uses less digits than its factorization.

2012242447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538 (or 2501 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 28.

The square root of 2012242447 is about 44858.0254469588. The cubic root of 2012242447 is about 1262.4865750558.

Adding to 2012242447 its reverse (7442422102), we get a palindrome (9454664549).

The spelling of 2012242447 in words is "two billion, twelve million, two hundred forty-two thousand, four hundred forty-seven".

Divisors: 1 37 1013 1369 1451 37481 53687 1386797 1469863 1986419 54384931 2012242447