2021720909 is an odd 10-digits composite number following 2021720908
and preceding 2021720910 . In scientific notation, it is written as 2.021720909 × 10^9.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 1866203904 positive integers (up to 2021720909) that are relatively prime to 2021720909.
2021720909 has 4 divisors, whose sum is 2177237916
The reverse of 2021720909 is 9090271202
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 32
Digital Root 5
Name
two billion twenty-one million seven hundred twenty thousand nine hundred nine
Scientific notation
2.021720909 × 10^9
Engineering notation
2.021720909 × 10^9
Prime Factorization
13 × 155516993
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2021720909
Product of the distinct prime numbers
The prime factorization of 2021720909 is 13 × 155516993.
Since it has a total of 2 prime factors.
6 , 10 , 88 , 23 , 506 , 95 , 1685 , 3233 , 60530 , 24226 , 193856 , 156760 , 5943078 , 8962416 , 27335227 , 67471377 , 407192778 , 864456330 , 6488440058 , 7464177486
n×2
4043441818
n×3
6065162727
n×4
8086883636
n×5
10108604545
n÷2
1010860454.5
n÷3
673906969.66667
n÷3
505430227.25
n÷5
404344181.8
n2
4087355433887786281
n3
8.2634919432057E+27
n4
1.6706474442932E+37
n5
3.377582869695E+46
2 √n
44963.55089403
3 √n
1264.4657419924
4 √n
212.04610558562
5 √n
72.634715622809
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2021720908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2021720909 can be divided by 4 positive divisors.
The sum of these divisors (counting 2021720909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1111000100000010000001101001101
3
Ternary
12012220020001201012
4
Quaternary
1320200100031031
5
Quinary
13120030032114
6
Senary
532340255005
8
Octal
17040201515
10
Decimal
2021720909
12
Duodecimal
4850a1465
16
Hexadecimal
7881034d
20
Vigesimal
1bbff259
36
Base36
xfohu5
md5
2f314b461c83cc6b21fe93cf5e9444e8
sha1
3b5f0494f17e432a56859ebb371ebcad79332ffc
sha256
b2cba7be052bb841f4d31cda1ce5c6974aa181059691ca1734af2771deb83ae9
sha512
9481324e54fbcfcadb4171b1acf317ca5f56cfdaa6b3755c2d567ae19a44705317d7f30a0da1ea63be0f078794637640637e2abe3c2cd04a1b5ac44a3ab8997a
ripemd-160
9669756b90bba78f2ee39f0e81457fe45aa1cfd7
Diameter
4043441818
Circumference
12702847110.647
Area
1.2840805803712E+19
Volume
3.4614034109031E+28
Surface area
5.1363223214849E+19
Circumference
12702847110.647
Perimeter
8086883636
Area
4087355433887786281
Diagonal
2859145128.8411
Surface area
2.4524132603327E+19
Volume
8.2634919432057E+27
Space diagonal
3501723333.1123
Perimeter
6065162727
Area
1.7698768200216E+18
Altitude
1750861666.5562
Surface area
1.7698768200216E+18
Volume
9.7386186488686E+26
Height
953048376.28035