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2020243211 = 72926213797
BaseRepresentation
bin111100001101010…
…0111011100001011
312012210102222200122
41320122213130023
513114140240321
6532244453455
7101030532620
oct17032473413
95183388618
102020243211
11947413698
124846aa28b
132627143ac
14152448347
15bc5608ab
hex786a770b

2020243211 has 16 divisors (see below), whose sum is σ = 2390005440. Its totient is φ = 1670847360.

The previous prime is 2020243207. The next prime is 2020243217. The reversal of 2020243211 is 1123420202.

It is not a de Polignac number, because 2020243211 - 22 = 2020243207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020243211.

It is not an unprimeable number, because it can be changed into a prime (2020243217) 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 in 15 ways as a sum of consecutive naturals, for example, 530165 + ... + 533961.

It is an arithmetic number, because the mean of its divisors is an integer number (149375340).

Almost surely, 22020243211 is an apocalyptic number.

2020243211 is a deficient number, since it is larger than the sum of its proper divisors (369762229).

2020243211 is a wasteful number, since it uses less digits than its factorization.

2020243211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6454.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2020243211 is about 44947.1157139143. The cubic root of 2020243211 is about 1264.1575962753.

Adding to 2020243211 its reverse (1123420202), we get a palindrome (3143663413).

The spelling of 2020243211 in words is "two billion, twenty million, two hundred forty-three thousand, two hundred eleven".

Divisors: 1 7 29 203 2621 3797 18347 26579 76009 110113 532063 770791 9951937 69663559 288606173 2020243211