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2020203047 is a prime number
BaseRepresentation
bin111100001101001…
…1101101000100111
312012210100221121002
41320122131220213
513114132444142
6532243543515
7101030304542
oct17032355047
95183327532
102020203047
119473964a5
1248468ab9b
132626cc025
14152437859
15bc553a32
hex7869da27

2020203047 has 2 divisors, whose sum is σ = 2020203048. Its totient is φ = 2020203046.

The previous prime is 2020203023. The next prime is 2020203103. The reversal of 2020203047 is 7403020202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2020203047 - 26 = 2020202983 is a prime.

It is a super-2 number, since 2×20202030472 = 8162440702216168418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2022203047) by changing a digit.

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 as a sum of consecutive naturals, namely, 1010101523 + 1010101524.

It is an arithmetic number, because the mean of its divisors is an integer number (1010101524).

Almost surely, 22020203047 is an apocalyptic number.

2020203047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020203047 is an equidigital number, since it uses as much as digits as its factorization.

2020203047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 2020203047 is about 44946.6689199545. The cubic root of 2020203047 is about 1264.1492187423.

Adding to 2020203047 its reverse (7403020202), we get a palindrome (9423223249).

The spelling of 2020203047 in words is "two billion, twenty million, two hundred three thousand, forty-seven".