Search a number
-
+
2020223121 = 3796201101
BaseRepresentation
bin111100001101010…
…0010100010010001
312012210101222010120
41320122202202101
513114134114441
6532244220453
7101030420220
oct17032424221
95183358116
102020223121
119473aa594
1248469a729
132627081c7
14152440cb7
15bc559966
hex786a2891

2020223121 has 8 divisors (see below), whose sum is σ = 3078435264. Its totient is φ = 1154413200.

The previous prime is 2020223099. The next prime is 2020223213. The reversal of 2020223121 is 1213220202.

It is a happy number.

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

It is not a de Polignac number, because 2020223121 - 214 = 2020206737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2020223121.

It is not an unprimeable number, because it can be changed into a prime (2020223021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48100530 + ... + 48100571.

It is an arithmetic number, because the mean of its divisors is an integer number (384804408).

Almost surely, 22020223121 is an apocalyptic number.

2020223121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2020223121 is a deficient number, since it is larger than the sum of its proper divisors (1058212143).

2020223121 is an equidigital number, since it uses as much as digits as its factorization.

2020223121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96201111.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2020223121 is about 44946.8922284956. The cubic root of 2020223121 is about 1264.1534058540.

Adding to 2020223121 its reverse (1213220202), we get a palindrome (3233443323).

The spelling of 2020223121 in words is "two billion, twenty million, two hundred twenty-three thousand, one hundred twenty-one".

Divisors: 1 3 7 21 96201101 288603303 673407707 2020223121