Search a number
-
+
2020201105 = 51331080017
BaseRepresentation
bin111100001101001…
…1101001010010001
312012210100211221011
41320122131022101
513114132413410
6532243530521
7101030266066
oct17032351221
95183324834
102020201105
11947394a9a
12484689a41
132626cb190
14152436c6d
15bc55318a
hex7869d291

2020201105 has 8 divisors (see below), whose sum is σ = 2610721512. Its totient is φ = 1491840768.

The previous prime is 2020201097. The next prime is 2020201223. The reversal of 2020201105 is 5011020202.

It can be written as a sum of positive squares in 4 ways, for example, as 38526849 + 1981674256 = 6207^2 + 44516^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2020201105 - 23 = 2020201097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian 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, 15539944 + ... + 15540073.

It is an arithmetic number, because the mean of its divisors is an integer number (326340189).

Almost surely, 22020201105 is an apocalyptic number.

It is an amenable number.

2020201105 is a deficient number, since it is larger than the sum of its proper divisors (590520407).

2020201105 is a wasteful number, since it uses less digits than its factorization.

2020201105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31080035.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 2020201105 is about 44946.6473165686. The cubic root of 2020201105 is about 1264.1488136710.

Adding to 2020201105 its reverse (5011020202), we get a palindrome (7031221307).

The spelling of 2020201105 in words is "two billion, twenty million, two hundred one thousand, one hundred five".

Divisors: 1 5 13 65 31080017 155400085 404040221 2020201105