21420009 is an odd 8-digits composite number following 21420008
and preceding 21420010 . In scientific notation, it is written as 2.1420009 × 10^7.
The sum of its digits is 18. It has a total of 5 prime factors and 24 positive divisors.
There are 12394368 positive integers (up to 21420009) that are relatively prime to 21420009.
21420009 has 24 divisors, whose sum is 31842720
The reverse of 21420009 is 90002412
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million four hundred twenty thousand nine
Scientific notation
2.1420009 × 10^7
Engineering notation
2.1420009 × 10^6
Prime Factorization
3 × 3 × 377 × 59 × 107
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
7140003
Product of the distinct prime numbers
The prime factorization of 21420009 is 3 × 3 × 377 × 59 × 107.
Since it has a total of 5 prime factors.
6 , 5 , 33 , 34 , 631 , 909 , 2951 , 1875 , 93939 , 96946 , 698802 , 739283 , 6810088 , 2034806 , 84267577 , 30490915 , 679532589 , 415429807 , 2198137778 , 6922304661
n×2
42840018
n×3
64260027
n×4
85680036
n×5
107100045
n÷2
10710004.5
n÷3
7140003
n÷3
5355002.25
n÷5
4284001.8
n2
458816785560081
n3
9.827859676048E+21
n4
2.1051284271169E+29
n5
4.5091869854999E+36
2 √n
4628.1755584679
3 √n
277.71961188626
4 √n
68.030695707658
5 √n
29.252563434682
1 , 3 , 9 , 59 , 107 , 177 , 321 , 377 , 531 , 963 , 1131 , 3393 , 6313 , 18939 , 22243 , 40339 , 56817 , 66729 , 121017 , 200187 , 363051 , 2380001 , 7140003 , 21420009
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
-21420008
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 21420009 can be divided by 24 positive divisors.
The sum of these divisors (counting 21420009) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010001101101011111101001
3
Ternary
1111022020201200
4
Quaternary
1101231133221
5
Quinary
20440420014
6
Senary
2043034413
8
Octal
121553751
10
Decimal
21420009
12
Duodecimal
720ba09
16
Hexadecimal
146d7e9
20
Vigesimal
6dha09
36
Base36
cr3s9
md5
e11fbe77d3dacb4d78f2bcc58860c827
sha1
bdab92fa512123dc9d9b8c319f0cccf93f1c6758
sha256
fd3c9252581f36ac1de034452ed92b3301973226984be6d0e84417dfbb39cf9c
sha512
18d9617556aab25444cb5121d91003c90a265672f1c5483645d7da79517c98337093b9631fa2ad0ef2af362fe6d743881406621b233e7b24b48e5a92ba8d984d
ripemd-160
38086ac14d89f4a766cb0ca1f9f749322379c80e
Diameter
42840018
Circumference
134585885.82845
Area
1.4414154428592E+15
Volume
4.1166842345045E+22
Surface area
5.7656617714369E+15
Circumference
134585885.82845
Perimeter
85680036
Area
458816785560081
Diagonal
30292467.233954
Surface area
2752900713360486
Volume
9.827859676048E+21
Space diagonal
37100543.886583
Perimeter
64260027
Area
1.9867349598887E+14
Altitude
18550271.943291
Surface area
1.9867349598887E+14
Volume
1.1582243702472E+21
Height
10097489.077985