21009040 is an even 8-digits composite number following 21009039
and preceding 21009041 . In scientific notation, it is written as 2.1009040 × 10^7.
The sum of its digits is 16. It has a total of 6 prime factors and 20 positive divisors.
There are 7756800 positive integers (up to 21009040) that are relatively prime to 21009040.
21009040 has 20 divisors, whose sum is 41333292
The reverse of 21009040 is 04090012
Previous prime number is 65
Is Prime? no
Number parity even
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty-one million nine thousand forty
Scientific notation
2.1009040 × 10^7
Engineering notation
2.1009040 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 65 × 20201
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
2626130
Product of the distinct prime numbers
The prime factorization of 21009040 is 2 × 2 × 2 × 2 × 65 × 20201.
Since it has a total of 6 prime factors.
6 , 2 , 73 , 39 , 642 , 383 , 4363 , 3996 , 63797 , 67779 , 744859 , 390531 , 3643699 , 3344016 , 70962493 , 25804148 , 338609969 , 781910426 , 1967587146 , 341462488
n×2
42018080
n×3
63027120
n×4
84036160
n×5
105045200
n÷2
10504520
n÷3
7003013.3333333
n÷3
5252260
n÷5
4201808
n2
441379761721600
n3
9.2729650691996E+21
n4
1.9481609405742E+29
n5
4.092899112696E+36
2 √n
4583.5619336931
3 √n
275.93200033116
4 √n
67.702008343129
5 √n
29.139442705245
1 , 2 , 4 , 8 , 16 , 65 , 130 , 260 , 520 , 1040 , 20201 , 40402 , 80804 , 161608 , 323216 , 1313065 , 2626130 , 5252260 , 10504520 , 21009040
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21009039
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21009040 can be divided by 20 positive divisors.
The sum of these divisors (counting 21009040) is 1, the average is 0.05.
Base
System
Value
2
Binary
1010000001001001010010000
3
Ternary
1110112100222121
4
Quaternary
1100021022100
5
Quinary
20334242130
6
Senary
2030144024
8
Octal
120111220
10
Decimal
21009040
12
Duodecimal
7052014
16
Hexadecimal
1409290
20
Vigesimal
6b62c0
36
Base36
ciaog
md5
65f05496049eef0b6520fe163b5a53d5
sha1
e0060ffc608d95430affcc5643617e21f0c2e265
sha256
bb98b80a395d9ffb149524e2e1fceb5254a01a90fb714f8e2bdd6ce57fd47a05
sha512
663fa1015d982405b59331396a7764b200d23e27df2508d6e9819843cbcdcd13138d29411840c00ba3881c68d860e1b3220b229b4f9ef141ea3560d4a0396437
ripemd-160
224e489a2fbd04faa21009f2f826250b2599e495
Diameter
42018080
Circumference
132003691.44595
Area
1.3866354168678E+15
Volume
3.8842505251189E+22
Surface area
5.5465416674712E+15
Circumference
132003691.44595
Perimeter
84036160
Area
441379761721600
Diagonal
29711269.300439
Surface area
2648278570329600
Volume
9.2729650691996E+21
Space diagonal
36388724.698247
Perimeter
63027120
Area
1.9112304318361E+14
Altitude
18194362.349123
Surface area
1.9112304318361E+14
Volume
1.0928294136895E+21
Height
9903756.4334796