820021609 is an odd 9-digits composite number following 820021608
and preceding 820021610 . In scientific notation, it is written as 8.20021609 × 10^8.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 744463440 positive integers (up to 820021609) that are relatively prime to 820021609.
820021609 has 8 divisors, whose sum is 895781952
The reverse of 820021609 is 906120028
Previous prime number is 743
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 28
Digital Root 1
Name
eight hundred twenty million twenty-one thousand six hundred nine
Scientific notation
8.20021609 × 10^8
Engineering notation
8.20021609 × 10^6
Prime Factorization
11 × 743 × 100333
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
820021609
Product of the distinct prime numbers
The prime factorization of 820021609 is 11 × 743 × 100333.
Since it has a total of 3 prime factors.
2 , 7 , 31 , 58 , 172 , 147 , 2644 , 4546 , 40999 , 56983 , 415719 , 390471 , 3020009 , 4187094 , 49034684 , 5209814 , 301968722 , 777603503 , 6098771694 , 5263538739
n×2
1640043218
n×3
2460064827
n×4
3280086436
n×5
4100108045
n÷2
410010804.5
n÷3
273340536.33333
n÷3
205005402.25
n÷5
164004321.8
n2
672435439226948881
n3
5.514115908235E+26
n4
4.5216941992834E+35
n5
3.7078869527023E+44
2 √n
28636.019433574
3 √n
935.99838411645
4 √n
169.22180543173
5 √n
60.640819174845
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
-820021608
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 820021609 can be divided by 8 positive divisors.
The sum of these divisors (counting 820021609) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000111000001000100101101001
3
Ternary
2010011000102011201
4
Quaternary
300320020211221
5
Quinary
3134411142414
6
Senary
213211524201
8
Octal
6070104551
10
Decimal
820021609
12
Duodecimal
1aa759661
16
Hexadecimal
30e08969
20
Vigesimal
cg52e09
36
Base36
dk7wq1
md5
5545248cb597e8c071bf680f22acaa4d
sha1
ba9f226eafb0762bf515d043b593beac6b753883
sha256
84d68a2a70c67f477dd69730e1c185f544c00f8b433292de479f396783927be0
sha512
d835d1cc566082e22fab7b5aada4cfa6d115f32664029745588795e823faa2a3878bbc45f4b72552b409a3bd51b892bc1e1dc12e3d2d793105144c060a98ff9f
ripemd-160
5e7115c650a22646db5fec2a76cdaa333b47f99f
Diameter
1640043218
Circumference
5152347725.2386
Area
2.1125182358888E+18
Volume
2.3097474704472E+27
Surface area
8.4500729435552E+18
Circumference
5152347725.2386
Perimeter
3280086436
Area
672435439226948881
Diagonal
1159685680.8868
Surface area
4034612635361693286
Volume
5.514115908235E+26
Space diagonal
1420319090.0924
Perimeter
2460064827
Area
2.9117308638774E+17
Altitude
710159545.04619
Surface area
2.9117308638774E+17
Volume
6.4984479182694E+25
Height
386561893.62894