205384021 is an odd 9-digits composite number following 205384020
and preceding 205384022 . In scientific notation, it is written as 2.05384021 × 10^8.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 187066560 positive integers (up to 205384021) that are relatively prime to 205384021.
205384021 has 8 divisors, whose sum is 224481024
The reverse of 205384021 is 120483502
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 25
Digital Root 7
Name
two hundred five million three hundred eighty-four thousand twenty-one
Scientific notation
2.05384021 × 10^8
Engineering notation
2.05384021 × 10^6
Prime Factorization
17 × 31 × 389723
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
205384021
Product of the distinct prime numbers
The prime factorization of 205384021 is 17 × 31 × 389723.
Since it has a total of 3 prime factors.
1 , 10 , 86 , 97 , 838 , 919 , 8149 , 2980 , 87467 , 44635 , 982642 , 854244 , 4920635 , 5972578 , 85788207 , 42251158 , 927770924 , 670986069 , 293877244 , 9921072760
n×2
410768042
n×3
616152063
n×4
821536084
n×5
1026920105
n÷2
102692010.5
n÷3
68461340.333333
n÷3
51346005.25
n÷5
41076804.2
n2
42182596082128441
n3
8.6636311995664E+24
n4
1.779371412228E+33
n5
3.6545445549583E+41
2 √n
14331.225383756
3 √n
590.00480796618
4 √n
119.71309612467
5 √n
45.974109982575
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
-205384020
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 205384021 can be divided by 8 positive divisors.
The sum of these divisors (counting 205384021) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100001111011110100101010101
3
Ternary
112022110120220121
4
Quaternary
30033132211111
5
Quinary
410034242041
6
Senary
32214031541
8
Octal
1417364525
10
Decimal
205384021
12
Duodecimal
589485b1
16
Hexadecimal
c3de955
20
Vigesimal
343d011
36
Base36
3ea3bp
md5
a2e6aa903933298819f24ea030a45f4f
sha1
c6951b60ef9bc4e38b726681c1b87dcf9a85b94c
sha256
05473037b48db1349255fbd63cf8f2654a226cac93b8dbc6b86707fb41de720d
sha512
0d0ff582b0d5447cdc3ce2e5280537d63967f967d7be3bf9c39c1deaed3c85e22cff037877fa6e472e92868bd8aca9d5b1b18485a3f2521a69317ba60f08088b
ripemd-160
847eaf00127a59c8608bc22bbb6d32e4d837ce72
Diameter
410768042
Circumference
1290465863.0767
Area
1.3252053396096E+17
Volume
3.6290133506625E+25
Surface area
5.3008213584384E+17
Circumference
1290465863.0767
Perimeter
821536084
Area
42182596082128441
Diagonal
290456867.99292
Surface area
253095576492770646
Volume
8.6636311995664E+24
Space diagonal
355735559.43479
Perimeter
616152063
Area
1.8265599902351E+16
Altitude
177867779.7174
Surface area
1.8265599902351E+16
Volume
1.0210187284855E+24
Height
96818955.99764