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2012311443 = 31076268883
BaseRepresentation
bin111011111110001…
…0110111110010011
312012020112000100110
41313330112332103
513110122431233
6531402452403
7100603236132
oct16774267623
95166460313
102012311443
1194299640a
12481b04103
13260b9803c
14151381919
15bb9e5663
hex77f16f93

2012311443 has 8 divisors (see below), whose sum is σ = 2708157888. Its totient is φ = 1329002984.

The previous prime is 2012311429. The next prime is 2012311459. The reversal of 2012311443 is 3441132102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2012311443 - 29 = 2012310931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2012312443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3134121 + ... + 3134762.

It is an arithmetic number, because the mean of its divisors is an integer number (338519736).

Almost surely, 22012311443 is an apocalyptic number.

2012311443 is a deficient number, since it is larger than the sum of its proper divisors (695846445).

2012311443 is a wasteful number, since it uses less digits than its factorization.

2012311443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6268993.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2012311443 is about 44858.7944889294. The cubic root of 2012311443 is about 1262.5010043190.

Adding to 2012311443 its reverse (3441132102), we get a palindrome (5453443545).

The spelling of 2012311443 in words is "two billion, twelve million, three hundred eleven thousand, four hundred forty-three".

Divisors: 1 3 107 321 6268883 18806649 670770481 2012311443