2021808189 is an odd 10-digits composite number following 2021808188
and preceding 2021808190 . In scientific notation, it is written as 2.021808189 × 10^9.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 1304392320 positive integers (up to 2021808189) that are relatively prime to 2021808189.
2021808189 has 8 divisors, whose sum is 2782703872
The reverse of 2021808189 is 9818081202
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 39
Digital Root 3
Name
two billion twenty-one million eight hundred eight thousand one hundred eighty-nine
Scientific notation
2.021808189 × 10^9
Engineering notation
2.021808189 × 10^9
Prime Factorization
3 × 31 × 21739873
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2021808189
Product of the distinct prime numbers
The prime factorization of 2021808189 is 3 × 31 × 21739873.
Since it has a total of 3 prime factors.
2 , 5 , 35 , 100 , 729 , 627 , 1665 , 6675 , 43150 , 46267 , 152420 , 679005 , 4110058 , 402072 , 8156719 , 42396102 , 818272971 , 187581916 , 1008854758 , 184687784
n×2
4043616378
n×3
6065424567
n×4
8087232756
n×5
10109040945
n÷2
1010904094.5
n÷3
673936063
n÷3
505452047.25
n÷5
404361637.8
n2
4087708353107459721
n3
8.2645622225564E+27
n4
1.6709359580065E+37
n5
3.378312003192E+46
2 √n
44964.52144747
3 √n
1264.4839378739
4 √n
212.0483941167
5 √n
72.635342756701
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2021808188
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2021808189 can be divided by 8 positive divisors.
The sum of these divisors (counting 2021808189) is 1, the average is 0.125.
Base
System
Value
2
Binary
1111000100000100101100000111101
3
Ternary
12012220101111102210
4
Quaternary
1320200211200331
5
Quinary
13120040330224
6
Senary
532342211033
8
Octal
17040454075
10
Decimal
2021808189
12
Duodecimal
485123a79
16
Hexadecimal
7882583d
20
Vigesimal
1bbg6099
36
Base36
xfqd6l
md5
2ac9c5ce663856bbedd8e8e5f46fe219
sha1
2cc941f8ca83b69edb1709c826cf147083b2ae4a
sha256
77453ea7e5014fe7464129abde2d1ed7e46b350d22d76fb469cc02e0e9e97abd
sha512
894d9b7a9c60a082358468613f04056c573a3764001554cc213b7d85384d319a3f3f73426bb2efbd15fe42974663032d8d7d5e684334e502d3bc3d261802f9f9
ripemd-160
d0bdffeffe50dad16c3334d6799ca005cc6be4f0
Diameter
4043616378
Circumference
12703395507.06
Area
1.284191453214E+19
Volume
3.4618517284692E+28
Surface area
5.136765812856E+19
Circumference
12703395507.06
Perimeter
8087232756
Area
4087708353107459721
Diagonal
2859268561.4008
Surface area
2.4526250118645E+19
Volume
8.2645622225564E+27
Space diagonal
3501874506.5068
Perimeter
6065424567
Area
1.7700296385265E+18
Altitude
1750937253.2534
Surface area
1.7700296385265E+18
Volume
9.7398799851796E+26
Height
953089520.46693