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2020321020 = 223574345319
BaseRepresentation
bin111100001101011…
…1010011011111100
312012210120221102110
41320122322123330
513114200233040
6532250254020
7101031305514
oct17032723374
95183527373
102020321020
119474670a3
12484727310
13262740933
14152468844
15bc578980
hex786ba6fc

2020321020 has 48 divisors (see below), whose sum is σ = 5664637440. Its totient is φ = 538015296.

The previous prime is 2020321019. The next prime is 2020321049. The reversal of 2020321020 is 201230202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2020320987 and 2020321005.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 21921 + ... + 67239.

It is an arithmetic number, because the mean of its divisors is an integer number (118013280).

Almost surely, 22020321020 is an apocalyptic number.

2020321020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020321020 is an abundant number, since it is smaller than the sum of its proper divisors (3644316420).

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

2020321020 is a wasteful number, since it uses less digits than its factorization.

2020321020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46074 (or 46072 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2020321020 is about 44947.9812672382. The cubic root of 2020321020 is about 1264.1738256043.

Adding to 2020321020 its reverse (201230202), we get a palindrome (2221551222).

The spelling of 2020321020 in words is "two billion, twenty million, three hundred twenty-one thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 743 1486 2229 2972 3715 4458 7430 8916 11145 14860 22290 44580 45319 90638 135957 181276 226595 271914 453190 543828 679785 906380 1359570 2719140 33672017 67344034 101016051 134688068 168360085 202032102 336720170 404064204 505080255 673440340 1010160510 2020321020