21066021 is an odd 8-digits composite number following 21066020
and preceding 21066022 . In scientific notation, it is written as 2.1066021 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 14043996 positive integers (up to 21066021) that are relatively prime to 21066021.
21066021 has 8 divisors, whose sum is 31208960
The reverse of 21066021 is 12066012
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million sixty-six thousand twenty-one
Scientific notation
2.1066021 × 10^7
Engineering notation
2.1066021 × 10^6
Prime Factorization
3 × 9 × 780223
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21066021
Product of the distinct prime numbers
The prime factorization of 21066021 is 3 × 9 × 780223.
Since it has a total of 3 prime factors.
9 , 1 , 23 , 26 , 365 , 496 , 6729 , 9582 , 72056 , 1522 , 173137 , 779842 , 3104448 , 3601007 , 60408017 , 63841769 , 740226319 , 608490811 , 9082943416 , 519502865
n×2
42132042
n×3
63198063
n×4
84264084
n×5
105330105
n÷2
10533010.5
n÷3
7022007
n÷3
5266505.25
n÷5
4213204.2
n2
443777240772441
n3
9.3486206734343E+21
n4
1.969382394276E+29
n5
4.1487050874849E+36
2 √n
4589.7735238245
3 √n
276.18123729594
4 √n
67.74786730093
5 √n
29.15523206233
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
-21066020
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 21066021 can be divided by 8 positive divisors.
The sum of these divisors (counting 21066021) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000010111000100100101
3
Ternary
1110122021011000
4
Quaternary
1100113010211
5
Quinary
20343103041
6
Senary
2031303513
8
Octal
120270445
10
Decimal
21066021
12
Duodecimal
707ab99
16
Hexadecimal
1417125
20
Vigesimal
6bd511
36
Base36
cjin9
md5
d4f79740cc187d174db729f7e77f4fc5
sha1
4ef25a2e669d1a2d8b189efb3589228809e19f6a
sha256
2159dd3777b5090a1cd25c76d95683558746fde377c21d0d66a0804c4ae6c7ca
sha512
44520643274803e3ac056a53d9b7be7f36bb891b7174985ca4a611c3c747cad51023c8f7bd94b157dd83b9fe838e0b0eb23d209350cfc29b60eca1d990fba03e
ripemd-160
c72ab4f988f3411c5c7b394df2c440bbbbaedf9b
Diameter
42132042
Circumference
132361713.62794
Area
1.394167319441E+15
Volume
3.9159410705145E+22
Surface area
5.5766692777642E+15
Circumference
132361713.62794
Perimeter
84264084
Area
443777240772441
Diagonal
29791852.603436
Surface area
2662663444634646
Volume
9.3486206734343E+21
Space diagonal
36487418.685313
Perimeter
63198063
Area
1.9216118206515E+14
Altitude
18243709.342656
Surface area
1.9216118206515E+14
Volume
1.1017455121544E+21
Height
9930617.5344788