209439666 is an even 9-digits composite number following 209439665
and preceding 209439667 . In scientific notation, it is written as 2.09439666 × 10^8.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 69422136 positive integers (up to 209439666) that are relatively prime to 209439666.
209439666 has 16 divisors, whose sum is 351021600
The reverse of 209439666 is 666934902
Previous prime number is 179
Is Prime? no
Number parity even
Number length 9
Sum of Digits 45
Digital Root 9
Name
two hundred nine million four hundred thirty-nine thousand six hundred sixty-six
Scientific notation
2.09439666 × 10^8
Engineering notation
2.09439666 × 10^6
Prime Factorization
2 × 9 × 179 × 65003
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
209439666
Product of the distinct prime numbers
The prime factorization of 209439666 is 2 × 9 × 179 × 65003.
Since it has a total of 4 prime factors.
7 , 4 , 98 , 65 , 843 , 572 , 1930 , 2762 , 66052 , 41892 , 694103 , 101622 , 6164444 , 7653187 , 96232609 , 79999852 , 897014982 , 631521195 , 8520080938 , 1523537005
n×2
418879332
n×3
628318998
n×4
837758664
n×5
1047198330
n÷2
104719833
n÷3
69813222
n÷3
52359916.5
n÷5
41887933.2
n2
43864973694191556
n3
9.1870654396103E+24
n4
1.9241359171921E+33
n5
4.0299038383532E+41
2 √n
14472.030472605
3 √n
593.86306063422
4 √n
120.29975258746
5 √n
46.154259478368
1 , 2 , 9 , 18 , 179 , 358 , 1611 , 3222 , 65003 , 130006 , 585027 , 1170054 , 11635537 , 23271074 , 104719833 , 209439666
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
-209439665
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 209439666 can be divided by 16 positive divisors.
The sum of these divisors (counting 209439666) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100011110111100101110110010
3
Ternary
112121002122012200
4
Quaternary
30132330232302
5
Quinary
412104032131
6
Senary
32441004030
8
Octal
1436745662
10
Decimal
209439666
12
Duodecimal
5a183616
16
Hexadecimal
c7bcbb2
20
Vigesimal
358jj36
36
Base36
3gp0oi
md5
580a8908c0e36814308f9f26ec1c34fa
sha1
be4f19d8c54b88e768e1e068bb4a2eef9b866961
sha256
7bc17e28f6e0e3626a93416b752f9b24e67f3e5997b38cd3852aa7431ffb5baf
sha512
c7631c14f62d3b34c2068de38be426534a9c785d72f613eedcdb2b2831a5926aae3d1b179849db629aad866ef68ce453c2e7295b085c581036d6d1cd58ed3a63
ripemd-160
d5339cf2f71290cb9a2455435785dd8e7c68ecf9
Diameter
418879332
Circumference
1315948232.1518
Area
1.3780587910758E+17
Volume
3.8482689724171E+25
Surface area
5.5122351643033E+17
Circumference
1315948232.1518
Perimeter
837758664
Area
43864973694191556
Diagonal
296192416.15609
Surface area
263189842165149336
Volume
9.1870654396103E+24
Space diagonal
362760142.63226
Perimeter
628318998
Area
1.8994090777753E+16
Altitude
181380071.31613
Surface area
1.8994090777753E+16
Volume
1.0827060452588E+24
Height
98730805.385364