209121521 is an odd 9-digits composite number following 209121520
and preceding 209121522 . In scientific notation, it is written as 2.09121521 × 10^8.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 174402288 positive integers (up to 209121521) that are relatively prime to 209121521.
209121521 has 8 divisors, whose sum is 245455680
The reverse of 209121521 is 125121902
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 23
Digital Root 5
Name
two hundred nine million one hundred twenty-one thousand five hundred twenty-one
Scientific notation
2.09121521 × 10^8
Engineering notation
2.09121521 × 10^6
Prime Factorization
7 × 37 × 807419
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
209121521
Product of the distinct prime numbers
The prime factorization of 209121521 is 7 × 37 × 807419.
Since it has a total of 3 prime factors.
6 , 1 , 32 , 12 , 380 , 565 , 8753 , 7190 , 68526 , 28220 , 104110 , 748750 , 7690494 , 758108 , 23232216 , 83363129 , 818282425 , 983245924 , 160117178 , 8906856574
n×2
418243042
n×3
627364563
n×4
836486084
n×5
1045607605
n÷2
104560760.5
n÷3
69707173.666667
n÷3
52280380.25
n÷5
41824304.2
n2
43731810545353441
n3
9.1452627373282E+24
n4
1.9124712535747E+33
n5
3.9993889741632E+41
2 √n
14461.034575714
3 √n
593.56220977573
4 √n
120.25404182693
5 √n
46.140229015735
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
-209121520
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 209121521 can be divided by 8 positive divisors.
The sum of these divisors (counting 209121521) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100011101101111000011110001
3
Ternary
112120111110210112
4
Quaternary
30131233003301
5
Quinary
412013342041
6
Senary
32430111105
8
Octal
1435570361
10
Decimal
209121521
12
Duodecimal
5a04b495
16
Hexadecimal
c76f0f1
20
Vigesimal
35703g1
36
Base36
3gi775
md5
cc736346d1dd8bd77ae6e93cb906517a
sha1
ac6a7cda13491334830872f8bda7d916b0bf0de9
sha256
a793c107c7eebc3c209a127364a71c57a7d5b009b44cefd51b97ac4c4f47bf58
sha512
fed7fe01187d49b39161a793b8a77f1ec4d81251e696418ecb9275deebdc7275130fa4591367ac90c3b1c08482c2986118f4d41f074efd0390e0c3dcace819aa
ripemd-160
96c66a7962ffd1927358348c73976c08d1321e83
Diameter
418243042
Circumference
1313949268.1622
Area
1.3738753473746E+17
Volume
3.8307586974318E+25
Surface area
5.4955013894985E+17
Circumference
1313949268.1622
Perimeter
836486084
Area
43731810545353441
Diagonal
295742491.18229
Surface area
262390863272120646
Volume
9.1452627373282E+24
Space diagonal
362209099.32808
Perimeter
627364563
Area
1.8936429442882E+16
Altitude
181104549.66404
Surface area
1.8936429442882E+16
Volume
1.0777795495496E+24
Height
98580830.394097