205142009 is an odd 9-digits composite number following 205142008
and preceding 205142010 . In scientific notation, it is written as 2.05142009 × 10^8.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 189696000 positive integers (up to 205142009) that are relatively prime to 205142009.
205142009 has 16 divisors, whose sum is 221047056
The reverse of 205142009 is 900241502
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 23
Digital Root 5
Name
two hundred five million one hundred forty-two thousand nine
Scientific notation
2.05142009 × 10^8
Engineering notation
2.05142009 × 10^6
Prime Factorization
101 × 17 × 157 × 761
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
205142009
Product of the distinct prime numbers
The prime factorization of 205142009 is 101 × 17 × 157 × 761.
Since it has a total of 4 prime factors.
8 , 7 , 11 , 15 , 889 , 521 , 7181 , 6909 , 87508 , 13554 , 420925 , 869618 , 3892339 , 3664545 , 13799794 , 54723230 , 807772437 , 826309990 , 1404970144 , 6436879395
n×2
410284018
n×3
615426027
n×4
820568036
n×5
1025710045
n÷2
102571004.5
n÷3
68380669.666667
n÷3
51285502.25
n÷5
41028401.8
n2
42083243856556081
n3
8.6330411899708E+24
n4
1.7709994134904E+33
n5
3.6330637762124E+41
2 √n
14322.77937413
3 √n
589.77297499308
4 √n
119.67781487866
5 √n
45.963270254951
1 , 17 , 101 , 157 , 761 , 1717 , 2669 , 12937 , 15857 , 76861 , 119477 , 269569 , 1306637 , 2031109 , 12067177 , 205142009
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
-205142008
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 205142009 can be divided by 16 positive divisors.
The sum of these divisors (counting 205142009) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100001110100011011111111001
3
Ternary
112022000021221012
4
Quaternary
30032203133321
5
Quinary
410004021014
6
Senary
32204523305
8
Octal
1416433771
10
Decimal
205142009
12
Duodecimal
58850535
16
Hexadecimal
c3a37f9
20
Vigesimal
3422f09
36
Base36
3e4wl5
md5
8ad2aaf0ed2679259d578838d1d62c78
sha1
9d36f11999edb5c838d525a63f1791b61df8b1d5
sha256
d46a930bed0929fe0098e5f3cfec4834320bb0eb861f03f0e426876921225c96
sha512
5eb9eeb87c84d4a5401ee153ab59a4338bc435a0227e335d8cb06a10baa68c5d49a043434770f68a24bfa228a080fcf53ee8d4cd1cffe60785826914dea04ebf
ripemd-160
7ac9ed3db4f710d7fe0a845558da1990d67ced62
Diameter
410284018
Circumference
1288945256.8341
Area
1.3220840973898E+17
Volume
3.6161998374067E+25
Surface area
5.2883363895594E+17
Circumference
1288945256.8341
Perimeter
820568036
Area
42083243856556081
Diagonal
290114611.34026
Surface area
252499463139336486
Volume
8.6330411899708E+24
Space diagonal
355316382.35475
Perimeter
615426027
Area
1.8222579126716E+16
Altitude
177658191.17738
Surface area
1.8222579126716E+16
Volume
1.0174136612819E+24
Height
96704870.446755