21009401 is an odd 8-digits composite number following 21009400
and preceding 21009402 . In scientific notation, it is written as 2.1009401 × 10^7.
The sum of its digits is 17. It has a total of 3 prime factors and 8 positive divisors.
There are 17913600 positive integers (up to 21009401) that are relatively prime to 21009401.
21009401 has 8 divisors, whose sum is 24136704
The reverse of 21009401 is 10490012
Previous prime number is 193
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million nine thousand four hundred one
Scientific notation
2.1009401 × 10^7
Engineering notation
2.1009401 × 10^6
Prime Factorization
7 × 193 × 15551
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21009401
Product of the distinct prime numbers
The prime factorization of 21009401 is 7 × 193 × 15551.
Since it has a total of 3 prime factors.
7 , 7 , 78 , 28 , 629 , 109 , 7561 , 2173 , 47134 , 14284 , 248717 , 318172 , 1702673 , 160795 , 9062406 , 37369999 , 557305688 , 716562841 , 4038131433 , 126562099
n×2
42018802
n×3
63028203
n×4
84037604
n×5
105047005
n÷2
10504700.5
n÷3
7003133.6666667
n÷3
5252350.25
n÷5
4201880.2
n2
441394930378801
n3
9.2734430916953E+21
n4
1.9482948456411E+29
n5
4.0932507678306E+36
2 √n
4583.6013133779
3 √n
275.93358077592
4 √n
67.702299173499
5 √n
29.139542845628
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
-21009400
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 21009401 can be divided by 8 positive divisors.
The sum of these divisors (counting 21009401) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001001001111111001
3
Ternary
1110112101110222
4
Quaternary
1100021033321
5
Quinary
20334300101
6
Senary
2030145425
8
Octal
120111771
10
Decimal
21009401
12
Duodecimal
7052275
16
Hexadecimal
14093f9
20
Vigesimal
6b63a1
36
Base36
ciayh
md5
2c07d3ab37ee9600c2d66afcbb459453
sha1
3aaa440ffd4a8d984ed7772eef0eda38b3389aab
sha256
59453f95c30408d0f3c4f0522ec68ba63f61fa055bc806e5845030edb1a43b72
sha512
0c2917edec9af8d76c8eaa5c7efa39f81ef5c9609e1efa73091f9ded63f6c608ec18c4e5b87787d52eae9392d6d80a9b68ee08597303f7c86d520d4fc32ed5a2
ripemd-160
834f464fc4e28ae9bd35ca925c55caae90ce6cf0
Diameter
42018802
Circumference
132005959.67584
Area
1.3866830706098E+15
Volume
3.8844507587137E+22
Surface area
5.5467322824393E+15
Circumference
132005959.67584
Perimeter
84037604
Area
441394930378801
Diagonal
29711779.831535
Surface area
2648369582272806
Volume
9.2734430916953E+21
Space diagonal
36389349.968588
Perimeter
63028203
Area
1.9112961140485E+14
Altitude
18194674.984294
Surface area
1.9112961140485E+14
Volume
1.0928857491809E+21
Height
9903926.6105116