2021808191 is an odd 10-digits composite number following 2021808190
and preceding 2021808192 . In scientific notation, it is written as 2.021808191 × 10^9.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 1838712960 positive integers (up to 2021808191) that are relatively prime to 2021808191.
2021808191 has 16 divisors, whose sum is 2209727520
The reverse of 2021808191 is 1918081202
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 32
Digital Root 5
Name
two billion twenty-one million eight hundred eight thousand one hundred ninety-one
Scientific notation
2.021808191 × 10^9
Engineering notation
2.021808191 × 10^9
Prime Factorization
13 × 109 × 181 × 7883
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2021808191
Product of the distinct prime numbers
The prime factorization of 2021808191 is 13 × 109 × 181 × 7883.
Since it has a total of 4 prime factors.
9 , 1 , 57 , 51 , 321 , 314 , 287 , 4079 , 69372 , 37958 , 21701 , 776151 , 2981842 , 1108548 , 57873151 , 96016420 , 829772709 , 736544898 , 60072510 , 5623697788
n×2
4043616382
n×3
6065424573
n×4
8087232764
n×5
10109040955
n÷2
1010904095.5
n÷3
673936063.66667
n÷3
505452047.75
n÷5
404361638.2
n2
4087708361194692481
n3
8.2645622470826E+27
n4
1.6709359646181E+37
n5
3.3783120199014E+46
2 √n
44964.52146971
3 √n
1264.4839382908
4 √n
212.04839416914
5 √n
72.635342771071
1 , 13 , 109 , 181 , 1417 , 2353 , 7883 , 19729 , 102479 , 256477 , 859247 , 1426823 , 11170211 , 18548699 , 155523707 , 2021808191
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2021808190
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2021808191 can be divided by 16 positive divisors.
The sum of these divisors (counting 2021808191) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1111000100000100101100000111111
3
Ternary
12012220101111102212
4
Quaternary
1320200211200333
5
Quinary
13120040330231
6
Senary
532342211035
8
Octal
17040454077
10
Decimal
2021808191
12
Duodecimal
485123a7b
16
Hexadecimal
7882583f
20
Vigesimal
1bbg609b
36
Base36
xfqd6n
md5
4d926fd72e4984ddb20c451cfb187fe5
sha1
f29b1f6120213c599c68bc00e8c84456586dce15
sha256
adeb81ab083db1b11985823f1b5db0f9f662feec1bab8c4a8456c3e884766c4a
sha512
3d34097ba7769e8f6c9bf4bbe6dce4289a03008a7239a97d6f05f37061edd6af43b29205af2f5205493ca63f85914f992cd4a61444ee17995ed755c9d57c7b79
ripemd-160
d4988826df59dcacb2fcf72e387c83bcd6c8f3b9
Diameter
4043616382
Circumference
12703395519.627
Area
1.2841914557547E+19
Volume
3.4618517387427E+28
Surface area
5.1367658230187E+19
Circumference
12703395519.627
Perimeter
8087232764
Area
4087708361194692481
Diagonal
2859268564.2292
Surface area
2.4526250167168E+19
Volume
8.2645622470826E+27
Space diagonal
3501874509.9709
Perimeter
6065424573
Area
1.7700296420283E+18
Altitude
1750937254.9855
Surface area
1.7700296420283E+18
Volume
9.7398800140841E+26
Height
953089521.40974