21000788 is an even 8-digits composite number following 21000787
and preceding 21000789 . In scientific notation, it is written as 2.1000788 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 12 positive divisors.
There are 10487640 positive integers (up to 21000788) that are relatively prime to 21000788.
21000788 has 12 divisors, whose sum is 36796032
The reverse of 21000788 is 88700012
Previous prime number is 971
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million seven hundred eighty-eight
Scientific notation
2.1000788 × 10^7
Engineering notation
2.1000788 × 10^6
Prime Factorization
2 × 2 × 971 × 5407
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10500394
Product of the distinct prime numbers
The prime factorization of 21000788 is 2 × 2 × 971 × 5407.
Since it has a total of 4 prime factors.
7 , 4 , 54 , 18 , 19 , 580 , 6362 , 3624 , 30110 , 30773 , 137445 , 444822 , 4342057 , 9449160 , 2444778 , 91842328 , 316315405 , 968585926 , 6817969445 , 9424629263
n×2
42001576
n×3
63002364
n×4
84003152
n×5
105003940
n÷2
10500394
n÷3
7000262.6666667
n÷3
5250197
n÷5
4200157.6
n2
441033096620944
n3
9.26204256312E+21
n4
1.9451019231506E+29
n5
4.0848673126478E+36
2 √n
4582.6616719981
3 √n
275.89586843979
4 √n
67.695359309173
5 √n
29.137153248237
1 , 2 , 4 , 971 , 1942 , 3884 , 5407 , 10814 , 21628 , 5250197 , 10500394 , 21000788
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21000787
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21000788 can be divided by 12 positive divisors.
The sum of these divisors (counting 21000788) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000000111001001010100
3
Ternary
1110111221122222
4
Quaternary
1100013021110
5
Quinary
20334011123
6
Senary
2030041512
8
Octal
120071124
10
Decimal
21000788
12
Duodecimal
7049298
16
Hexadecimal
1407254
20
Vigesimal
6b51j8
36
Base36
ci4b8
md5
f822de6ad355bd84cfae7acbcba50d9f
sha1
e86ebbb4358e2a56fcdcc3ca4e744d82b606bf38
sha256
ad520aa6edba001e2e86cc79393c9e64ba618b75be65fce2477d9ccade0ed622
sha512
776e4901c54f625b067387844a3a3a7952a5ac06e215529e8dc3e0b655cecb233cc71b8ba604aa3ab76b1a5846eb8dcdf16f8e49a8c43e2b585f84bd824865d1
ripemd-160
6fb8b709ae3c22df61b6e62fc2bdbfe1ffd9194a
Diameter
42001576
Circumference
131951842.60079
Area
1.3855463363343E+15
Volume
3.8796753164712E+22
Surface area
5.5421853453373E+15
Circumference
131951842.60079
Perimeter
84003152
Area
441033096620944
Diagonal
29699599.210122
Surface area
2646198579725664
Volume
9.26204256312E+21
Space diagonal
36374431.814983
Perimeter
63002364
Area
1.9097293279173E+14
Altitude
18187215.907491
Surface area
1.9097293279173E+14
Volume
1.0915421840034E+21
Height
9899866.403374