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2012844489 = 31739467539
BaseRepresentation
bin111011111111001…
…1001000111001001
312012021112002112220
41313332121013021
513110242010424
6531422124253
7100610616165
oct16776310711
95167462486
102012844489
1194321a947
12482120689
13261023856
1415147dca5
15bba9d579
hex77f991c9

2012844489 has 8 divisors (see below), whose sum is σ = 2841662880. Its totient is φ = 1262961216.

The previous prime is 2012844451. The next prime is 2012844503. The reversal of 2012844489 is 9844482102.

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

It is not a de Polignac number, because 2012844489 - 212 = 2012840393 is a prime.

It is a super-2 number, since 2×20128444892 = 8103085873795342242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2012844489.

It is not an unprimeable number, because it can be changed into a prime (2012854489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19733719 + ... + 19733820.

It is an arithmetic number, because the mean of its divisors is an integer number (355207860).

Almost surely, 22012844489 is an apocalyptic number.

It is an amenable number.

2012844489 is a deficient number, since it is larger than the sum of its proper divisors (828818391).

2012844489 is a wasteful number, since it uses less digits than its factorization.

2012844489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39467559.

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 2012844489 is about 44864.7354723061. The cubic root of 2012844489 is about 1262.6124701162.

The spelling of 2012844489 in words is "two billion, twelve million, eight hundred forty-four thousand, four hundred eighty-nine".

Divisors: 1 3 17 51 39467539 118402617 670948163 2012844489