21001844 is an even 8-digits composite number following 21001843
and preceding 21001845 . In scientific notation, it is written as 2.1001844 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 6 positive divisors.
There are 10500920 positive integers (up to 21001844) that are relatively prime to 21001844.
21001844 has 6 divisors, whose sum is 36753234
The reverse of 21001844 is 44810012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million one thousand eight hundred forty-four
Scientific notation
2.1001844 × 10^7
Engineering notation
2.1001844 × 10^6
Prime Factorization
2 × 2 × 5250461
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10500922
Product of the distinct prime numbers
The prime factorization of 21001844 is 2 × 2 × 5250461.
Since it has a total of 3 prime factors.
1 , 8 , 41 , 11 , 979 , 752 , 9741 , 2868 , 86027 , 85466 , 743607 , 710206 , 9047825 , 6755055 , 38506021 , 1804595 , 590166900 , 119139568 , 9373549857 , 7206014951
n×2
42003688
n×3
63005532
n×4
84007376
n×5
105009220
n÷2
10500922
n÷3
7000614.6666667
n÷3
5250461
n÷5
4200368.8
n2
441077451400336
n3
9.2634398262274E+21
n4
1.9454931813382E+29
n5
4.0858944297528E+36
2 √n
4582.7768874341
3 √n
275.90049272903
4 √n
67.696210288568
5 √n
29.13744626786
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
-21001843
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 21001844 can be divided by 6 positive divisors.
The sum of these divisors (counting 21001844) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010000000111011001110100
3
Ternary
1110112000010002
4
Quaternary
1100013121310
5
Quinary
20334024334
6
Senary
2030050432
8
Octal
120073164
10
Decimal
21001844
12
Duodecimal
7049a18
16
Hexadecimal
1407674
20
Vigesimal
6b54c4
36
Base36
ci54k
md5
5b4b1bf458e4f851a4b03b1ea4b29417
sha1
4b301a3dec99d2630fc7c99612e12d20cee1eda7
sha256
e639942cd9a6fa908ea8287c7f65a57025526803b966c64bb54135d863dc0386
sha512
5ec1d0e8cf39039ab1d7d8765cea995d02c53ed007917d6881dca077d1695a31c29cb6cd188e6b5bff7e964e6e0af008437ab37cf05074b2a671701462bb182e
ripemd-160
873b53d6b5053cfecfdeb78420e8c4e1ed1d89ba
Diameter
42003688
Circumference
131958477.64448
Area
1.3856856809834E+15
Volume
3.880260600673E+22
Surface area
5.5427427239336E+15
Circumference
131958477.64448
Perimeter
84007376
Area
441077451400336
Diagonal
29701092.619644
Surface area
2646464708402016
Volume
9.2634398262274E+21
Space diagonal
36376260.860636
Perimeter
63005532
Area
1.9099213897459E+14
Altitude
18188130.430318
Surface area
1.9099213897459E+14
Volume
1.0917068530398E+21
Height
9900364.206548