21001449 is an odd 8-digits composite number following 21001448
and preceding 21001450 . In scientific notation, it is written as 2.1001449 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 12000744 positive integers (up to 21001449) that are relatively prime to 21001449.
21001449 has 8 divisors, whose sum is 28573600
The reverse of 21001449 is 94410012
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million one thousand four hundred forty-nine
Scientific notation
2.1001449 × 10^7
Engineering notation
2.1001449 × 10^6
Prime Factorization
49 × 3 × 142867
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21001449
Product of the distinct prime numbers
The prime factorization of 21001449 is 49 × 3 × 142867.
Since it has a total of 3 prime factors.
4 , 6 , 90 , 39 , 570 , 462 , 4371 , 8285 , 31493 , 88148 , 377832 , 17908 , 2914002 , 1257011 , 64204982 , 68031782 , 116018686 , 492223530 , 3571635698 , 8279565577
n×2
42002898
n×3
63004347
n×4
84005796
n×5
105007245
n÷2
10500724.5
n÷3
7000483
n÷3
5250362.25
n÷5
4200289.8
n2
441060860099601
n3
9.2629171592779E+21
n4
1.945346823118E+29
n5
4.0855102093025E+36
2 √n
4582.7337910902
3 √n
275.89876301778
4 √n
67.695891980904
5 √n
29.137336664362
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
-21001448
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 21001449 can be divided by 8 positive divisors.
The sum of these divisors (counting 21001449) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111010011101001
3
Ternary
1110111222120110
4
Quaternary
1100013103221
5
Quinary
20334021244
6
Senary
2030044533
8
Octal
120072351
10
Decimal
21001449
12
Duodecimal
7049749
16
Hexadecimal
14074e9
20
Vigesimal
6b53c9
36
Base36
ci4tl
md5
f36d5cbaec0a4ac29186eec4ae24b15e
sha1
3a4f6703f3564ee850e4e473034eabfab127e626
sha256
492de6457f4006e91c3a570ccc602df1aa848444364aa2e7de003066ca2d0975
sha512
18d084c5660cadb2fd21221a184295151e1ea37e87ce35ff76747d4de04934212e500dd8624031efa9c417249900f8ae971a8fec08088c28add8efeca4f3b5c6
ripemd-160
59eff62bc1a3c9b4bd5835f2f760806bfce5523a
Diameter
42002898
Circumference
131955995.78628
Area
1.3856335578749E+15
Volume
3.8800416664531E+22
Surface area
5.5425342314996E+15
Circumference
131955995.78628
Perimeter
84005796
Area
441060860099601
Diagonal
29700534.005287
Surface area
2646365160597606
Volume
9.2629171592779E+21
Space diagonal
36375576.700567
Perimeter
63004347
Area
1.9098495473063E+14
Altitude
18187788.350283
Surface area
1.9098495473063E+14
Volume
1.0916452561491E+21
Height
9900178.0017623