21006983 is an odd 8-digits composite number following 21006982
and preceding 21006984 . In scientific notation, it is written as 2.1006983 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 20711040 positive integers (up to 21006983) that are relatively prime to 21006983.
21006983 has 4 divisors, whose sum is 21302928
The reverse of 21006983 is 38960012
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million six thousand nine hundred eighty-three
Scientific notation
2.1006983 × 10^7
Engineering notation
2.1006983 × 10^6
Prime Factorization
71 × 295873
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21006983
Product of the distinct prime numbers
The prime factorization of 21006983 is 71 × 295873.
Since it has a total of 2 prime factors.
2 , 8 , 63 , 50 , 597 , 676 , 6680 , 4469 , 73540 , 71744 , 255292 , 58241 , 5599685 , 7859016 , 17233067 , 93958818 , 825217633 , 509246860 , 5142302176 , 6293932402
n×2
42013966
n×3
63020949
n×4
84027932
n×5
105034915
n÷2
10503491.5
n÷3
7002327.6666667
n÷3
5251745.75
n÷5
4201396.6
n2
441293334762289
n3
9.2702415813647E+21
n4
1.9473980730562E+29
n5
4.0908958214925E+36
2 √n
4583.337539392
3 √n
275.92299451509
4 √n
67.700351102428
5 √n
29.138872072972
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21006982
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21006983 can be divided by 4 positive divisors.
The sum of these divisors (counting 21006983) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001000101010000111
3
Ternary
1110112021011102
4
Quaternary
1100020222013
5
Quinary
20334210413
6
Senary
2030130315
8
Octal
120105207
10
Decimal
21006983
12
Duodecimal
705099b
16
Hexadecimal
1408a87
20
Vigesimal
6b5h93
36
Base36
ci93b
md5
66e84b4a7b8629efa9107e0282e3ffa0
sha1
c5ffb72777bd0e8d202f74450b986e9b96315b5b
sha256
42813ca45800393496ddd75c0d851fc582ded6fd32937c46ccee2cfc4eae2ac9
sha512
8dacf12f1e0254a71fa468fba6ed167d7806e52fac6f4871617ca0c639092996355d21519fd1f6beac62c2968d0b0112ebfd9f5371ec11db4b3a52fd0a952378
ripemd-160
c406f5142ba3afb64a80325988cc93564ad5afc7
Diameter
42013966
Circumference
131990766.93377
Area
1.3863638985673E+15
Volume
3.8831097132024E+22
Surface area
5.5454555942694E+15
Circumference
131990766.93377
Perimeter
84027932
Area
441293334762289
Diagonal
29708360.263141
Surface area
2647760008573734
Volume
9.2702415813647E+21
Space diagonal
36385161.869736
Perimeter
63020949
Area
1.9108561921245E+14
Altitude
18192580.934868
Surface area
1.9108561921245E+14
Volume
1.0925084475701E+21
Height
9902786.7543804