21000743 is an odd 8-digits composite number following 21000742
and preceding 21000744 . In scientific notation, it is written as 2.1000743 × 10^7.
The sum of its digits is 17. It has a total of 3 prime factors and 8 positive divisors.
There are 20664000 positive integers (up to 21000743) that are relatively prime to 21000743.
21000743 has 8 divisors, whose sum is 21339696
The reverse of 21000743 is 34700012
Previous prime number is 421
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million seven hundred forty-three
Scientific notation
2.1000743 × 10^7
Engineering notation
2.1000743 × 10^6
Prime Factorization
83 × 421 × 601
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21000743
Product of the distinct prime numbers
The prime factorization of 21000743 is 83 × 421 × 601.
Since it has a total of 3 prime factors.
3 , 10 , 28 , 62 , 7 , 511 , 2640 , 5616 , 30150 , 3905 , 85390 , 62066 , 6222830 , 7404403 , 56778545 , 68552847 , 567891949 , 896728438 , 8097563770 , 8117357247
n×2
42001486
n×3
63002229
n×4
84002972
n×5
105003715
n÷2
10500371.5
n÷3
7000247.6666667
n÷3
5250185.75
n÷5
4200148.6
n2
441031206552049
n3
9.2619830237795E+21
n4
1.9450852515276E+29
n5
4.0848235480421E+36
2 √n
4582.656762185
3 √n
275.89567137857
4 √n
67.695323045134
5 √n
29.137140761343
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
-21000742
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 21000743 can be divided by 8 positive divisors.
The sum of these divisors (counting 21000743) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111001000100111
3
Ternary
1110111221121022
4
Quaternary
1100013020213
5
Quinary
20334010433
6
Senary
2030041355
8
Octal
120071047
10
Decimal
21000743
12
Duodecimal
704925b
16
Hexadecimal
1407227
20
Vigesimal
6b51h3
36
Base36
ci49z
md5
98bc170aba7a6089a611cc7b1fda6966
sha1
d66a4fb4edc88a4e99d7558d0e2632902fb3e357
sha256
252cb738388aa81d5b4457ac4c3858dbe1ec8d3e0a752fa8c069a7636a93a65e
sha512
8eeb24b04f34fdc5125746c76004fe176bbedc736d2747f6f91442ffdbab85f5b02ee7d1d0cac4d0741dbbf02ce684631eada09927645f7da619f68b9b23ace0
ripemd-160
749245977978164187185df3b7669443e46a5861
Diameter
42001486
Circumference
131951559.85745
Area
1.3855403985078E+15
Volume
3.8796503766905E+22
Surface area
5.542161594031E+15
Circumference
131951559.85745
Perimeter
84002972
Area
441031206552049
Diagonal
29699535.570512
Surface area
2646187239312294
Volume
9.2619830237795E+21
Space diagonal
36374353.872696
Perimeter
63002229
Area
1.9097211436789E+14
Altitude
18187176.936348
Surface area
1.9097211436789E+14
Volume
1.0915351672249E+21
Height
9899845.1901706