21006021 is an odd 8-digits composite number following 21006020
and preceding 21006022 . In scientific notation, it is written as 2.1006021 × 10^7.
The sum of its digits is 12. It has a total of 4 prime factors and 16 positive divisors.
There are 13590720 positive integers (up to 21006021) that are relatively prime to 21006021.
21006021 has 16 divisors, whose sum is 28847360
The reverse of 21006021 is 12060012
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 12
Digital Root 3
Name
twenty-one million six thousand twenty-one
Scientific notation
2.1006021 × 10^7
Engineering notation
2.1006021 × 10^6
Prime Factorization
3 × 79 × 61 × 1453
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21006021
Product of the distinct prime numbers
The prime factorization of 21006021 is 3 × 79 × 61 × 1453.
Since it has a total of 4 prime factors.
6 , 4 , 87 , 63 , 719 , 919 , 6121 , 8824 , 73539 , 2709 , 189025 , 50753 , 7323081 , 4010135 , 7180046 , 51698833 , 978863211 , 778816356 , 5197258463 , 1606114032
n×2
42012042
n×3
63018063
n×4
84024084
n×5
105030105
n÷2
10503010.5
n÷3
7002007
n÷3
5251505.25
n÷5
4201204.2
n2
441252918252441
n3
9.2689680671221E+21
n4
1.947041378663E+29
n5
4.0899592088063E+36
2 √n
4583.2325928323
3 √n
275.91878255103
4 √n
67.699576016636
5 √n
29.138605189256
1 , 3 , 61 , 79 , 183 , 237 , 1453 , 4359 , 4819 , 14457 , 88633 , 114787 , 265899 , 344361 , 7002007 , 21006021
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21006020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21006021 can be divided by 16 positive divisors.
The sum of these divisors (counting 21006021) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001000011011000101
3
Ternary
1110112012211210
4
Quaternary
1100020123011
5
Quinary
20334143041
6
Senary
2030122033
8
Octal
120103305
10
Decimal
21006021
12
Duodecimal
7050319
16
Hexadecimal
14086c5
20
Vigesimal
6b5f11
36
Base36
ci8cl
md5
9a9306d6cdb7de9b7ad51c0c4ec32f0f
sha1
63e5d66187b742ebce64c02c4ff76caec976f48c
sha256
c4e7843e90390cacb0a032cc84c0aaa349a26bf5c8d7d9e5848c5d1b38555f39
sha512
5caeb90163ab2d4a0d950808e6621d7b6a67c8b8e4b9de41e9af33e291e01a37c9f34b85794b9a9a7dfca10152ce667a246fd6b7d9a83646e48891184a7b3607
ripemd-160
95b4b96cea8a765fd7827289d08484f8bdb6c288
Diameter
42012042
Circumference
131984722.50951
Area
1.3862369263569E+15
Volume
3.8825762648039E+22
Surface area
5.5449477054277E+15
Circumference
131984722.50951
Perimeter
84024084
Area
441252918252441
Diagonal
29706999.789694
Surface area
2647517509514646
Volume
9.2689680671221E+21
Space diagonal
36383495.636859
Perimeter
63018063
Area
1.9106811835032E+14
Altitude
18191747.818429
Surface area
1.9106811835032E+14
Volume
1.0923583624773E+21
Height
9902333.2632314