21000515 is an odd 8-digits composite number following 21000514
and preceding 21000516 . In scientific notation, it is written as 2.1000515 × 10^7.
The sum of its digits is 14. It has a total of 2 prime factors and 4 positive divisors.
There are 16800408 positive integers (up to 21000515) that are relatively prime to 21000515.
21000515 has 4 divisors, whose sum is 25200624
The reverse of 21000515 is 51500012
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 14
Digital Root 5
Name
twenty-one million five hundred fifteen
Scientific notation
2.1000515 × 10^7
Engineering notation
2.1000515 × 10^6
Prime Factorization
5 × 4200103
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21000515
Product of the distinct prime numbers
The prime factorization of 21000515 is 5 × 4200103.
Since it has a total of 2 prime factors.
8 , 8 , 68 , 32 , 988 , 948 , 4318 , 7854 , 40663 , 9365 , 339849 , 430248 , 3309507 , 7881911 , 39691885 , 43459229 , 779341684 , 867452457 , 9071268004 , 112056549
n×2
42001030
n×3
63001545
n×4
84002060
n×5
105002575
n÷2
10500257.5
n÷3
7000171.6666667
n÷3
5250128.75
n÷5
4200103
n2
441021630265225
n3
9.2616813617093E+21
n4
1.945000783618E+29
n5
4.0846018131381E+36
2 √n
4582.6318857181
3 √n
275.89467293071
4 √n
67.695139306438
5 √n
29.137077494087
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
-21000514
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 21000515 can be divided by 4 positive divisors.
The sum of these divisors (counting 21000515) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000111000101000011
3
Ternary
1110111221021212
4
Quaternary
1100013011003
5
Quinary
20334004030
6
Senary
2030040335
8
Octal
120070503
10
Decimal
21000515
12
Duodecimal
70490ab
16
Hexadecimal
1407143
20
Vigesimal
6b515f
36
Base36
ci43n
md5
2d1dc7f44480dc23c45224b3162a04ae
sha1
4652d769b302f432821d505393fd2dba8ae60a79
sha256
c4ae0b77f3ede88a5fc0869a050f0a0818825b016a99b218564a57c75a5386f9
sha512
59649cfda6fc0d8a0d2904ce3179bb20c5b52b2d8d4779cef6b5659ec45f4bf89e881bc82a18891785c06111bce4a137ede9b87160b45610e1c9f9442550ad83
ripemd-160
1ffbf620afb9bb6df97a689ecf91ee4e0b7cc92a
Diameter
42001030
Circumference
131950127.2912
Area
1.3855103137154E+15
Volume
3.8795240167781E+22
Surface area
5.5420412548617E+15
Circumference
131950127.2912
Perimeter
84002060
Area
441021630265225
Diagonal
29699213.12982
Surface area
2646129781591350
Volume
9.2616813617093E+21
Space diagonal
36373958.965112
Perimeter
63001545
Area
1.9096796771406E+14
Altitude
18186979.482556
Surface area
1.9096796771406E+14
Volume
1.091499616009E+21
Height
9899737.7099399