205409085 is an odd 9-digits composite number following 205409084
and preceding 205409086 . In scientific notation, it is written as 2.05409085 × 10^8.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 92708928 positive integers (up to 205409085) that are relatively prime to 205409085.
205409085 has 16 divisors, whose sum is 253583360
The reverse of 205409085 is 580904502
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 33
Digital Root 6
Name
two hundred five million four hundred nine thousand eighty-five
Scientific notation
2.05409085 × 10^8
Engineering notation
2.05409085 × 10^6
Prime Factorization
15 × 7 × 79 × 24763
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
205409085
Product of the distinct prime numbers
The prime factorization of 205409085 is 15 × 7 × 79 × 24763.
Since it has a total of 4 prime factors.
5 , 9 , 78 , 62 , 369 , 897 , 5192 , 9400 , 28265 , 57647 , 651400 , 351472 , 1516590 , 3073458 , 91552731 , 27115565 , 764185075 , 118675023 , 8871047770 , 4532919696
n×2
410818170
n×3
616227255
n×4
821636340
n×5
1027045425
n÷2
102704542.5
n÷3
68469695
n÷3
51352271.25
n÷5
41081817
n2
42192892200537225
n3
8.666803380416E+24
n4
1.7802401522462E+33
n5
3.6567750075314E+41
2 √n
14332.099811263
3 √n
590.02880736485
4 √n
119.71674824878
5 √n
45.975232016162
1 , 7 , 15 , 79 , 105 , 553 , 1185 , 8295 , 24763 , 173341 , 371445 , 1956277 , 2600115 , 13693939 , 29344155 , 205409085
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
-205409084
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 205409085 can be divided by 16 positive divisors.
The sum of these divisors (counting 205409085) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100001111100100101100111101
3
Ternary
112022111212021220
4
Quaternary
30033210230331
5
Quinary
410041042320
6
Senary
32214343553
8
Octal
1417445475
10
Decimal
205409085
12
Duodecimal
5895abb9
16
Hexadecimal
c3e4b3d
20
Vigesimal
343g2e5
36
Base36
3eamnx
md5
b11e606b35eca6212c576d225b68fb91
sha1
7462c90b7087c13a3ea3bb11e8a64d1e9609edf8
sha256
271d7d53c417c57abb71edfab310b8c28dcbe422806592e5859dcdf27b7b64a4
sha512
7703a1cdd842cfd424e11b559dfa68a46cb5ce8f345d1a15e4bd0e74d4e8b163e87fbf374ade68e6615690f74cddad0aa5952f1f5975704a5c998adcf0c8016d
ripemd-160
2db3039013135ce3b34db217087c07967ac060dc
Diameter
410818170
Circumference
1290623344.8332
Area
1.3255288017091E+17
Volume
3.6303421106696E+25
Surface area
5.3021152068366E+17
Circumference
1290623344.8332
Perimeter
821636340
Area
42192892200537225
Diagonal
290492313.84165
Surface area
253157353203223350
Volume
8.666803380416E+24
Space diagonal
355778971.55623
Perimeter
616227255
Area
1.8270058252402E+16
Altitude
177889485.77812
Surface area
1.8270058252402E+16
Volume
1.0213925735838E+24
Height
96830771.280549