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2020200000020 = 225101010000001
BaseRepresentation
bin11101011001011101010…
…011011010101000010100
321011010111012201011122222
4131121131103122220110
5231044332200000040
64144022253041512
7265645303446266
oct35313523325024
97133435634588
102020200000020
11709842262884
12287640a86298
131186724c62c7
146dac7557b36
153783b5a2bb5
hex1d65d4daa14

2020200000020 has 12 divisors (see below), whose sum is σ = 4242420000084. Its totient is φ = 808080000000.

The previous prime is 2020200000011. The next prime is 2020200000083. The reversal of 2020200000020 is 200000020202.

It can be written as a sum of positive squares in 2 ways, for example, as 791822344336 + 1228377655684 = 889844^2 + 1108322^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2020199999953 and 2020200000007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50504999981 + ... + 50505000020.

It is an arithmetic number, because the mean of its divisors is an integer number (353535000007).

Almost surely, 22020200000020 is an apocalyptic number.

2020200000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020200000020 is an abundant number, since it is smaller than the sum of its proper divisors (2222220000064).

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

2020200000020 is a wasteful number, since it uses less digits than its factorization.

2020200000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101010000010 (or 101010000008 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

Adding to 2020200000020 its reverse (200000020202), we get a palindrome (2220200020222).

The spelling of 2020200000020 in words is "two trillion, twenty billion, two hundred million, twenty", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 101010000001 202020000002 404040000004 505050000005 1010100000010 2020200000020