820172021 is an odd 9-digits composite number following 820172020
and preceding 820172022 . In scientific notation, it is written as 8.20172021 × 10^8.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 771686080 positive integers (up to 820172021) that are relatively prime to 820172021.
820172021 has 8 divisors, whose sum is 868688064
The reverse of 820172021 is 120271028
Previous prime number is 10391
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 23
Digital Root 5
Name
eight hundred twenty million one hundred seventy-two thousand twenty-one
Scientific notation
8.20172021 × 10^8
Engineering notation
8.20172021 × 10^6
Prime Factorization
17 × 10391 × 4643
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
820172021
Product of the distinct prime numbers
The prime factorization of 820172021 is 17 × 10391 × 4643.
Since it has a total of 3 prime factors.
3 , 5 , 24 , 100 , 662 , 606 , 5031 , 6487 , 50487 , 8945 , 814265 , 689000 , 4050165 , 1224163 , 81444348 , 80085859 , 545658565 , 160790003 , 7865896393 , 2314823088
n×2
1640344042
n×3
2460516063
n×4
3280688084
n×5
4100860105
n÷2
410086010.5
n÷3
273390673.66667
n÷3
205043005.25
n÷5
164034404.2
n2
672682144031224441
n3
5.517150735607E+26
n4
4.5250126689844E+35
n5
3.7112887857716E+44
2 √n
28638.645585991
3 √n
936.05560894259
4 √n
169.22956475153
5 √n
60.643043613239
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
-820172020
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 820172021 can be divided by 8 positive divisors.
The sum of these divisors (counting 820172021) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000111000101101010011110101
3
Ternary
2010011022001111112
4
Quaternary
300320231103311
5
Quinary
3134431001041
6
Senary
213215044405
8
Octal
6070552365
10
Decimal
820172021
12
Duodecimal
1aa810705
16
Hexadecimal
30e2d4f5
20
Vigesimal
cg61a11
36
Base36
dkb4s5
md5
dd71fc70e690916e06b25e9650b62ec6
sha1
e9e91f0868cb9632a18921e6660447ae7b031fea
sha256
acd2223f760d3117845a7892443ad37b01ca388422bb19aafe8dd171d3e0e76a
sha512
be46ab8e2ed6cd645c4a8dd1258de386a17997920f2764d7e756404f2bcf3ff8dc3eddede985dbb27935d17a7bf0773f21023b6c3697ab4413af55256fc7395c
ripemd-160
d6b79d0fd020cc0aad5bb6a8b62547f2ef9ba9c8
Diameter
1640344042
Circumference
5153292791.707
Area
2.1132932818895E+18
Volume
2.3110186959641E+27
Surface area
8.4531731275581E+18
Circumference
5153292791.707
Perimeter
3280688084
Area
672682144031224441
Diagonal
1159898395.5772
Surface area
4036092864187346646
Volume
5.517150735607E+26
Space diagonal
1420579611.3184
Perimeter
2460516063
Area
2.9127991270161E+17
Altitude
710289805.65922
Surface area
2.9127991270161E+17
Volume
6.5020244966268E+25
Height
386632798.52572