21000943 is an odd 8-digits composite number following 21000942
and preceding 21000944 . In scientific notation, it is written as 2.1000943 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 20946568 positive integers (up to 21000943) that are relatively prime to 21000943.
21000943 has 4 divisors, whose sum is 21055320
The reverse of 21000943 is 34900012
Previous prime number is 389
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million nine hundred forty-three
Scientific notation
2.1000943 × 10^7
Engineering notation
2.1000943 × 10^6
Prime Factorization
389 × 53987
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21000943
Product of the distinct prime numbers
The prime factorization of 21000943 is 389 × 53987.
Since it has a total of 2 prime factors.
5 , 3 , 77 , 39 , 929 , 82 , 2259 , 1168 , 49721 , 58237 , 969890 , 799571 , 7323029 , 2265832 , 5224514 , 7183525 , 624502233 , 871122455 , 8416067978 , 3210785044
n×2
42001886
n×3
63002829
n×4
84003772
n×5
105004715
n÷2
10500471.5
n÷3
7000314.3333333
n÷3
5250235.75
n÷5
4200188.6
n2
441039606889249
n3
9.2622476450235E+21
n4
1.9451593484502E+29
n5
4.085018060272E+36
2 √n
4582.6785835361
3 √n
275.89654720408
4 √n
67.695484218196
5 √n
29.137196258484
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
-21000942
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 21000943 can be divided by 4 positive divisors.
The sum of these divisors (counting 21000943) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000111001011101111
3
Ternary
1110111221212201
4
Quaternary
1100013023233
5
Quinary
20334012233
6
Senary
2030042331
8
Octal
120071357
10
Decimal
21000943
12
Duodecimal
70493a7
16
Hexadecimal
14072ef
20
Vigesimal
6b5273
36
Base36
ci4fj
md5
d32eb892e182d622c38bd412d6142941
sha1
e5e001e054e63c2e33ee79158f87380b3aeab4b8
sha256
3a498b495e6133994b4d760e102abc1ef28843f3ddd236939d4c72b57a9a1e45
sha512
6763b6fae6234eded0fde931ffd50937b139ef750daf9a5615ef0648ceb1dbf259c8229df4c3a2e25fbb0900a42bb19eaa59988b76d4daddf098d73cf6c0beba
ripemd-160
02470c8b5d8af20560b10ad4f7d4075b7445b1de
Diameter
42001886
Circumference
131952816.49452
Area
1.3855667889454E+15
Volume
3.879761220978E+22
Surface area
5.5422671557816E+15
Circumference
131952816.49452
Perimeter
84003772
Area
441039606889249
Diagonal
29699818.413224
Surface area
2646237641335494
Volume
9.2622476450235E+21
Space diagonal
36374700.282858
Perimeter
63002829
Area
1.909757518206E+14
Altitude
18187350.141429
Surface area
1.909757518206E+14
Volume
1.0915663531375E+21
Height
9899939.4710748