205720138 is an even 9-digits composite number following 205720137
and preceding 205720139 . In scientific notation, it is written as 2.05720138 × 10^8.
The sum of its digits is 28. It has a total of 5 prime factors and 24 positive divisors.
There are 93297408 positive integers (up to 205720138) that are relatively prime to 205720138.
205720138 has 24 divisors, whose sum is 338193828
The reverse of 205720138 is 831027502
Previous prime number is 59
Is Prime? no
Number parity even
Number length 9
Sum of Digits 28
Digital Root 1
Name
two hundred five million seven hundred twenty thousand one hundred thirty-eight
Scientific notation
2.05720138 × 10^8
Engineering notation
2.05720138 × 10^6
Prime Factorization
2 × 13 × 59 × 59 × 2273
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
3486782
Product of the distinct prime numbers
The prime factorization of 205720138 is 2 × 13 × 59 × 59 × 2273.
Since it has a total of 5 prime factors.
3 , 4 , 47 , 95 , 235 , 966 , 7061 , 2067 , 49660 , 15381 , 144574 , 745158 , 2271019 , 1510695 , 32121741 , 35101531 , 121459469 , 370081856 , 3550414936 , 6556254352
n×2
411440276
n×3
617160414
n×4
822880552
n×5
1028600690
n÷2
102860069
n÷3
68573379.333333
n÷3
51430034.5
n÷5
41144027.6
n2
42320775178739044
n3
8.7062357100372E+24
n4
1.7910480117294E+33
n5
3.6845464413759E+41
2 √n
14342.947326125
3 √n
590.32648596709
4 √n
119.7620445973
5 √n
45.989147738935
1 , 2 , 13 , 26 , 59 , 118 , 767 , 1534 , 2273 , 3481 , 4546 , 6962 , 29549 , 45253 , 59098 , 90506 , 134107 , 268214 , 1743391 , 3486782 , 7912313 , 15824626 , 102860069 , 205720138
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-205720137
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 205720138 can be divided by 24 positive divisors.
The sum of these divisors (counting 205720138) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1100010000110000101001001010
3
Ternary
112100002122222101
4
Quaternary
30100300221022
5
Quinary
410131021023
6
Senary
32225144014
8
Octal
1420605112
10
Decimal
205720138
12
Duodecimal
58a8b00a
16
Hexadecimal
c430a4a
20
Vigesimal
345f06i
36
Base36
3ehaoa
md5
f12ac13ae3ce0aa2b3970f05be9d268e
sha1
f860b016e414e3c206a790cde201f567c0300db3
sha256
82e8e320c29a8aaca3841622d72c392d763e5d85f6408c5faf121116ce645d28
sha512
614559fff71e2ae2863965464a433f36cafec8c7b2ca3f58d75416eb0fadf452ed903f62b933d1c66d9382ceda60dd8886c99bf56e6242ccd9e95afd465e13c0
ripemd-160
71af0761358ccf761b52c7f67ffbf4d25db6465d
Diameter
411440276
Circumference
1292577748.4726
Area
1.3295463639575E+17
Volume
3.6468594862765E+25
Surface area
5.3181854558301E+17
Circumference
1292577748.4726
Perimeter
822880552
Area
42320775178739044
Diagonal
290932209.21286
Surface area
253924651072434264
Volume
8.7062357100372E+24
Space diagonal
356317731.15608
Perimeter
617160414
Area
1.8325433206319E+16
Altitude
178158865.57804
Surface area
1.8325433206319E+16
Volume
1.026039718196E+24
Height
96977403.070955