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2020168535 = 57115247191
BaseRepresentation
bin111100001101001…
…0101001101010111
312012210022012020212
41320122111031113
513114130343120
6532243120035
7101030102120
oct17032251527
95183265225
102020168535
11947372580
1248467301b
132626b93c8
14152429047
15bc5486c5
hex78695357

2020168535 has 16 divisors (see below), whose sum is σ = 3022382592. Its totient is φ = 1259325600.

The previous prime is 2020168517. The next prime is 2020168541. The reversal of 2020168535 is 5358610202.

It is not a de Polignac number, because 2020168535 - 216 = 2020102999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 2623211 + ... + 2623980.

It is an arithmetic number, because the mean of its divisors is an integer number (188898912).

Almost surely, 22020168535 is an apocalyptic number.

2020168535 is a deficient number, since it is larger than the sum of its proper divisors (1002214057).

2020168535 is a wasteful number, since it uses less digits than its factorization.

2020168535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5247214.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2020168535 is about 44946.2849966491. The cubic root of 2020168535 is about 1264.1420200325.

Adding to 2020168535 its reverse (5358610202), we get a palindrome (7378778737).

The spelling of 2020168535 in words is "two billion, twenty million, one hundred sixty-eight thousand, five hundred thirty-five".

Divisors: 1 5 7 11 35 55 77 385 5247191 26235955 36730337 57719101 183651685 288595505 404033707 2020168535