209439145 is an odd 9-digits composite number following 209439144
and preceding 209439146 . In scientific notation, it is written as 2.09439145 × 10^8.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 167551312 positive integers (up to 209439145) that are relatively prime to 209439145.
209439145 has 4 divisors, whose sum is 251326980
The reverse of 209439145 is 541934902
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 37
Digital Root 1
Name
two hundred nine million four hundred thirty-nine thousand one hundred forty-five
Scientific notation
2.09439145 × 10^8
Engineering notation
2.09439145 × 10^6
Prime Factorization
5 × 41887829
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
209439145
Product of the distinct prime numbers
The prime factorization of 209439145 is 5 × 41887829.
Since it has a total of 2 prime factors.
6 , 6 , 43 , 48 , 26 , 56 , 355 , 9948 , 53494 , 67218 , 157934 , 932339 , 3419691 , 8621849 , 93876629 , 45344315 , 912785982 , 458477823 , 3130424510 , 6807165343
n×2
418878290
n×3
628317435
n×4
837756580
n×5
1047195725
n÷2
104719572.5
n÷3
69813048.333333
n÷3
52359786.25
n÷5
41887829
n2
43864755458331025
n3
9.1869968788269E+24
n4
1.9241167714192E+33
n5
4.0298537148619E+41
2 √n
14472.012472355
3 √n
593.86256820456
4 √n
120.29967777328
5 √n
46.154236515771
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-209439144
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 209439145 can be divided by 4 positive divisors.
The sum of these divisors (counting 209439145) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100011110111100100110101001
3
Ternary
112121002121111101
4
Quaternary
30132330212221
5
Quinary
412104023040
6
Senary
32441001401
8
Octal
1436744651
10
Decimal
209439145
12
Duodecimal
5a183261
16
Hexadecimal
c7bc9a9
20
Vigesimal
358jhh5
36
Base36
3gp0a1
md5
4fb09e3cc6c0939851f7cdf516f15aac
sha1
c4816287a89e3c2c2fdb436595fc24ff11dfd4cf
sha256
96b5fa7ed530e11ec22e6321fb0ba40258ad29f66193e8286cdd835a326b5770
sha512
dbef8b74db65c7f8aaf71cc63534df5c7b52c2c781d1b25b6e933734bef859ac866e0874820576f32e8717ea7126353c5f2649ce337f2589b6164dfa57c531c9
ripemd-160
b811f46107efea2954cdbaea7bb2abad523fb5c4
Diameter
418878290
Circumference
1315944958.6123
Area
1.3780519349941E+17
Volume
3.8482402537433E+25
Surface area
5.5122077399762E+17
Circumference
1315944958.6123
Perimeter
837756580
Area
43864755458331025
Diagonal
296191679.35083
Surface area
263188532749986150
Volume
9.1869968788269E+24
Space diagonal
362759240.23379
Perimeter
628317435
Area
1.8993996278853E+16
Altitude
181379620.11689
Surface area
1.8993996278853E+16
Volume
1.082697965293E+24
Height
98730559.783608