21000939 is an odd 8-digits composite number following 21000938
and preceding 21000940 . In scientific notation, it is written as 2.1000939 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 14000624 positive integers (up to 21000939) that are relatively prime to 21000939.
21000939 has 4 divisors, whose sum is 28001256
The reverse of 21000939 is 93900012
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million nine hundred thirty-nine
Scientific notation
2.1000939 × 10^7
Engineering notation
2.1000939 × 10^6
Prime Factorization
3 × 7000313
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21000939
Product of the distinct prime numbers
The prime factorization of 21000939 is 3 × 7000313.
Since it has a total of 2 prime factors.
8 , 1 , 58 , 91 , 388 , 57 , 6041 , 7165 , 18824 , 18475 , 368650 , 387056 , 329748 , 1249109 , 44403526 , 18556771 , 953890442 , 374896332 , 2993788409 , 9823639000
n×2
42001878
n×3
63002817
n×4
84003756
n×5
105004695
n÷2
10500469.5
n÷3
7000313
n÷3
5250234.75
n÷5
4200187.8
n2
441039438881721
n3
9.2622423525493E+21
n4
1.945157866491E+29
n5
4.0850141699548E+36
2 √n
4582.6781471101
3 √n
275.89652968762
4 √n
67.695480994746
5 √n
29.137195148545
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
-21000938
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 21000939 can be divided by 4 positive divisors.
The sum of these divisors (counting 21000939) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000111001011101011
3
Ternary
1110111221212120
4
Quaternary
1100013023223
5
Quinary
20334012224
6
Senary
2030042323
8
Octal
120071353
10
Decimal
21000939
12
Duodecimal
70493a3
16
Hexadecimal
14072eb
20
Vigesimal
6b526j
36
Base36
ci4ff
md5
62feda2821e0e94cd57bc04a45ab17a8
sha1
40c67a0df88edfbf005e04dbed02a177b8716cf5
sha256
33b3ecfc7eaae5a1ffcbd2bc1b93f4375cbf5ce66cc547bb793312b7e9a44b08
sha512
ca957ef50b7ce2d57e88a038462a94152b03947e1bca6c4e6934921d9488ad1994dd7afeedc80441728cafc08c712ff8d7ee2fd86c1947a0ff59ffccca373261
ripemd-160
801848d3b026f2e74b8de2b5de1fa4b4857579e8
Diameter
42001878
Circumference
131952791.36177
Area
1.3855662611342E+15
Volume
3.8797590040716E+22
Surface area
5.5422650445367E+15
Circumference
131952791.36177
Perimeter
84003756
Area
441039438881721
Diagonal
29699812.75637
Surface area
2646236633290326
Volume
9.2622423525493E+21
Space diagonal
36374693.354655
Perimeter
63002817
Area
1.909756790712E+14
Altitude
18187346.677327
Surface area
1.909756790712E+14
Volume
1.0915657294135E+21
Height
9899937.5854567