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12844632284 = 2211291923461
BaseRepresentation
bin10111111011001100…
…11000100011011100
31020011011102221000122
423331212120203130
5202301211213114
65522321014112
7633205400351
oct137546304334
936134387018
1012844632284
1154a1507390
1225a5784338
131299143843
1489bc84628
155029b1e8e
hex2fd9988dc

12844632284 has 12 divisors (see below), whose sum is σ = 24521570808. Its totient is φ = 5838469200.

The previous prime is 12844632271. The next prime is 12844632289. The reversal of 12844632284 is 48223644821.

It is a super-2 number, since 2×128446322842 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 291923461 = 12844632284 / (1 + 2 + 8 + 4 + 4 + 6 + 3 + 2 + 2 + 8 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12844632289) 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 3 ways as a sum of consecutive naturals, for example, 145961687 + ... + 145961774.

It is an arithmetic number, because the mean of its divisors is an integer number (2043464234).

Almost surely, 212844632284 is an apocalyptic number.

It is an amenable number.

12844632284 is a deficient number, since it is larger than the sum of its proper divisors (11676938524).

12844632284 is a wasteful number, since it uses less digits than its factorization.

12844632284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291923476 (or 291923474 counting only the distinct ones).

The product of its digits is 589824, while the sum is 44.

The spelling of 12844632284 in words is "twelve billion, eight hundred forty-four million, six hundred thirty-two thousand, two hundred eighty-four".

Divisors: 1 2 4 11 22 44 291923461 583846922 1167693844 3211158071 6422316142 12844632284