21000844 is an even 8-digits composite number following 21000843
and preceding 21000845 . In scientific notation, it is written as 2.1000844 × 10^7.
The sum of its digits is 19. It has a total of 3 prime factors and 6 positive divisors.
There are 10500420 positive integers (up to 21000844) that are relatively prime to 21000844.
21000844 has 6 divisors, whose sum is 36751484
The reverse of 21000844 is 44800012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million eight hundred forty-four
Scientific notation
2.1000844 × 10^7
Engineering notation
2.1000844 × 10^6
Prime Factorization
2 × 2 × 5250211
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10500422
Product of the distinct prime numbers
The prime factorization of 21000844 is 2 × 2 × 5250211.
Since it has a total of 3 prime factors.
9 , 7 , 35 , 36 , 712 , 502 , 3302 , 7083 , 26850 , 63379 , 737687 , 288648 , 7644741 , 4133424 , 17710056 , 86712068 , 740681610 , 79402043 , 404903546 , 874988437
n×2
42001688
n×3
63002532
n×4
84003376
n×5
105004220
n÷2
10500422
n÷3
7000281.3333333
n÷3
5250211
n÷5
4200168.8
n2
441035448712336
n3
9.2621166568778E+21
n4
1.9451226702089E+29
n5
4.0849217757921E+36
2 √n
4582.6677819803
3 √n
275.89611367114
4 √n
67.695404437674
5 √n
29.137168787452
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21000843
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21000844 can be divided by 6 positive divisors.
The sum of these divisors (counting 21000844) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010000000111001010001100
3
Ternary
1110111221202001
4
Quaternary
1100013022030
5
Quinary
20334011334
6
Senary
2030042044
8
Octal
120071214
10
Decimal
21000844
12
Duodecimal
7049324
16
Hexadecimal
140728c
20
Vigesimal
6b5224
36
Base36
ci4cs
md5
d6d30ee5f399da7ed93e4b72816ccd50
sha1
e89336b00dfeed2bf91c38a662bdefd5c585048e
sha256
91572c933f3e822f5e916e1a79fb6b2317320438b48d96a0c26393e5f38075f8
sha512
cc3cb551e65554d53d8798c2c933a21f47bc0eca001d6599d2e4a81d97bdd25f6abe139ad45d88f9fedd9ac0a6de1fce986a202e62b111bdfb4afbc33f9ccecf
ripemd-160
3170d32ffb5959af63d14c7dd16c1dc71ee85311
Diameter
42001688
Circumference
131952194.45917
Area
1.3855537256474E+15
Volume
3.8797063527918E+22
Surface area
5.5422149025894E+15
Circumference
131952194.45917
Perimeter
84003376
Area
441035448712336
Diagonal
29699678.406082
Surface area
2646212692274016
Volume
9.2621166568778E+21
Space diagonal
36374528.809828
Perimeter
63002532
Area
1.9097395127718E+14
Altitude
18187264.404914
Surface area
1.9097395127718E+14
Volume
1.0915509160365E+21
Height
9899892.8020272