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2020321430 = 251631239461
BaseRepresentation
bin111100001101011…
…1010100010010110
312012210120221222122
41320122322202112
513114200241210
6532250255542
7101031306641
oct17032724226
95183527878
102020321430
11947467436
124847275b2
13262740b8a
14152468a58
15bc578b55
hex786ba896

2020321430 has 16 divisors (see below), whose sum is σ = 3658891824. Its totient is φ = 803170080.

The previous prime is 2020321427. The next prime is 2020321447. The reversal of 2020321430 is 341230202.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2020321399 and 2020321408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618101 + ... + 621360.

It is an arithmetic number, because the mean of its divisors is an integer number (228680739).

Almost surely, 22020321430 is an apocalyptic number.

2020321430 is a deficient number, since it is larger than the sum of its proper divisors (1638570394).

2020321430 is a wasteful number, since it uses less digits than its factorization.

2020321430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239631.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2020321430 is about 44947.9858280658. The cubic root of 2020321430 is about 1264.1739111206.

Adding to 2020321430 its reverse (341230202), we get a palindrome (2361551632).

The spelling of 2020321430 in words is "two billion, twenty million, three hundred twenty-one thousand, four hundred thirty".

Divisors: 1 2 5 10 163 326 815 1630 1239461 2478922 6197305 12394610 202032143 404064286 1010160715 2020321430