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2020202320 = 24525252529
BaseRepresentation
bin111100001101001…
…1101011101010000
312012210100220121011
41320122131131100
513114132433240
6532243540304
7101030302453
oct17032353520
95183326534
102020202320
119473959a4
1248468a694
132626cb8b6
1415243749a
15bc5536ea
hex7869d750

2020202320 has 20 divisors (see below), whose sum is σ = 4696970580. Its totient is φ = 808080896.

The previous prime is 2020202287. The next prime is 2020202323. The reversal of 2020202320 is 232020202.

It can be written as a sum of positive squares in 2 ways, for example, as 824149264 + 1196053056 = 28708^2 + 34584^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 2020202320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020202323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12626185 + ... + 12626344.

It is an arithmetic number, because the mean of its divisors is an integer number (234848529).

Almost surely, 22020202320 is an apocalyptic number.

2020202320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020202320 is an abundant number, since it is smaller than the sum of its proper divisors (2676768260).

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

2020202320 is a wasteful number, since it uses less digits than its factorization.

2020202320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25252542 (or 25252536 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 2020202320 is about 44946.6608325913. The cubic root of 2020202320 is about 1264.1490671013.

Adding to 2020202320 its reverse (232020202), we get a palindrome (2252222522).

The spelling of 2020202320 in words is "two billion, twenty million, two hundred two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 25252529 50505058 101010116 126262645 202020232 252525290 404040464 505050580 1010101160 2020202320