209121838 is an even 9-digits composite number following 209121837
and preceding 209121839 . In scientific notation, it is written as 2.09121838 × 10^8.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 103088160 positive integers (up to 209121838) that are relatively prime to 209121838.
209121838 has 8 divisors, whose sum is 318101040
The reverse of 209121838 is 838121902
Previous prime number is 71
Is Prime? no
Number parity even
Number length 9
Sum of Digits 34
Digital Root 7
Name
two hundred nine million one hundred twenty-one thousand eight hundred thirty-eight
Scientific notation
2.09121838 × 10^8
Engineering notation
2.09121838 × 10^6
Prime Factorization
2 × 71 × 1472689
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
209121838
Product of the distinct prime numbers
The prime factorization of 209121838 is 2 × 71 × 1472689.
Since it has a total of 3 prime factors.
7 , 5 , 46 , 49 , 369 , 697 , 808 , 7279 , 56359 , 87754 , 891483 , 962517 , 2711259 , 62120 , 92284740 , 12847260 , 304957297 , 525130646 , 9959909594 , 3162424899
n×2
418243676
n×3
627365514
n×4
836487352
n×5
1045609190
n÷2
104560919
n÷3
69707279.333333
n÷3
52280459.5
n÷5
41824367.6
n2
43731943128498244
n3
9.145304326343E+24
n4
1.9124828497942E+33
n5
3.9994192869244E+41
2 √n
14461.045536198
3 √n
593.56250969564
4 √n
120.25408739913
5 √n
46.140243004198
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
-209121837
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 209121838 can be divided by 8 positive divisors.
The sum of these divisors (counting 209121838) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100011101101111001000101110
3
Ternary
112120111111020021
4
Quaternary
30131233020232
5
Quinary
412013344323
6
Senary
32430112354
8
Octal
1435571056
10
Decimal
209121838
12
Duodecimal
5a04b6ba
16
Hexadecimal
c76f22e
20
Vigesimal
35704bi
36
Base36
3gi7fy
md5
036461741a53aba00bd51ae53fb41bda
sha1
cc587e9e60dfbdd83831058281baa5a76568b15b
sha256
0f73069833b1c8736008c82ef6f57a130165d18cb3dbc928768babb6b059306d
sha512
e17383c46b8e8a77a79e220d0823f833223d4095f46986a2328b7d9bae44819c19c6a249803b901d0d447aa389aecb351ad784be6cc52beac535232ad956a575
ripemd-160
789075e67e8652559bec3cad2472e67fcc19eaff
Diameter
418243676
Circumference
1313951259.932
Area
1.373879512597E+17
Volume
3.8307761181976E+25
Surface area
5.4955180503879E+17
Circumference
1313951259.932
Perimeter
836487352
Area
43731943128498244
Diagonal
295742939.48799
Surface area
262391658770989464
Volume
9.145304326343E+24
Space diagonal
362209648.38819
Perimeter
627365514
Area
1.8936486853068E+16
Altitude
181104824.19409
Surface area
1.8936486853068E+16
Volume
1.077784450862E+24
Height
98580979.82933