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2020232311 = 14531390387
BaseRepresentation
bin111100001101010…
…0100110001110111
312012210102102201221
41320122210301313
513114134413221
6532244331211
7101030456056
oct17032446167
95183372657
102020232311
11947406489
124846a3b07
1326270c446
1415244439d
15bc55c541
hex786a4c77

2020232311 has 4 divisors (see below), whose sum is σ = 2021624152. Its totient is φ = 2018840472.

The previous prime is 2020232309. The next prime is 2020232317. The reversal of 2020232311 is 1132320202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2020232311 - 21 = 2020232309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020232317) 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 3 ways as a sum of consecutive naturals, for example, 693741 + ... + 696646.

It is an arithmetic number, because the mean of its divisors is an integer number (505406038).

Almost surely, 22020232311 is an apocalyptic number.

2020232311 is a deficient number, since it is larger than the sum of its proper divisors (1391841).

2020232311 is a wasteful number, since it uses less digits than its factorization.

2020232311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391840.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2020232311 is about 44946.9944601416. The cubic root of 2020232311 is about 1264.1553227301.

Adding to 2020232311 its reverse (1132320202), we get a palindrome (3152552513).

The spelling of 2020232311 in words is "two billion, twenty million, two hundred thirty-two thousand, three hundred eleven".

Divisors: 1 1453 1390387 2020232311