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2020420444 = 22772157873
BaseRepresentation
bin111100001101101…
…0010101101011100
312012210202222210211
41320123102231130
513114211423234
6532252342204
7101032201420
oct17033225534
95183688724
102020420444
11947524869
12484774964
13262776c73
14152492b80
15bc598164
hex786d2b5c

2020420444 has 12 divisors (see below), whose sum is σ = 4040840944. Its totient is φ = 865894464.

The previous prime is 2020420439. The next prime is 2020420453. The reversal of 2020420444 is 4440240202.

2020420444 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 36078909 + ... + 36078964.

Almost surely, 22020420444 is an apocalyptic number.

It is an amenable number.

2020420444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2020420444 is a wasteful number, since it uses less digits than its factorization.

2020420444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72157884 (or 72157882 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 2020420444 is about 44949.0872432355. The cubic root of 2020420444 is about 1264.1945627637.

Adding to 2020420444 its reverse (4440240202), we get a palindrome (6460660646).

The spelling of 2020420444 in words is "two billion, twenty million, four hundred twenty thousand, four hundred forty-four".

Divisors: 1 2 4 7 14 28 72157873 144315746 288631492 505105111 1010210222 2020420444