21000824 is an even 8-digits composite number following 21000823
and preceding 21000825 . In scientific notation, it is written as 2.1000824 × 10^7.
The sum of its digits is 17. It has a total of 6 prime factors and 32 positive divisors.
There are 9601536 positive integers (up to 21000824) that are relatively prime to 21000824.
21000824 has 32 divisors, whose sum is 42804720
The reverse of 21000824 is 42800012
Previous prime number is 113
Is Prime? no
Number parity even
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million eight hundred twenty-four
Scientific notation
2.1000824 × 10^7
Engineering notation
2.1000824 × 10^6
Prime Factorization
2 × 2 × 2 × 13 × 113 × 1787
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5250206
Product of the distinct prime numbers
The prime factorization of 21000824 is 2 × 2 × 2 × 13 × 113 × 1787.
Since it has a total of 6 prime factors.
8 , 8 , 9 , 62 , 670 , 86 , 8826 , 4748 , 27823 , 88858 , 602987 , 970520 , 5697464 , 2840139 , 21283198 , 63081601 , 658279327 , 585504486 , 4327011541 , 6358897750
n×2
42001648
n×3
63002472
n×4
84003296
n×5
105004120
n÷2
10500412
n÷3
7000274.6666667
n÷3
5250206
n÷5
4200164.8
n2
441034608678976
n3
9.262090194776E+21
n4
1.9451152605262E+29
n5
4.0849023246024E+36
2 √n
4582.6655998447
3 √n
275.89602608857
4 √n
67.695388320363
5 √n
29.137163237736
1 , 2 , 4 , 8 , 13 , 26 , 52 , 104 , 113 , 226 , 452 , 904 , 1469 , 1787 , 2938 , 3574 , 5876 , 7148 , 11752 , 14296 , 23231 , 46462 , 92924 , 185848 , 201931 , 403862 , 807724 , 1615448 , 2625103 , 5250206 , 10500412 , 21000824
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21000823
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21000824 can be divided by 32 positive divisors.
The sum of these divisors (counting 21000824) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000000111001001111000
3
Ternary
1110111221201022
4
Quaternary
1100013021320
5
Quinary
20334011244
6
Senary
2030042012
8
Octal
120071170
10
Decimal
21000824
12
Duodecimal
7049308
16
Hexadecimal
1407278
20
Vigesimal
6b5214
36
Base36
ci4c8
md5
cbb2f4e3e13093d82c94da5dc9dc22b1
sha1
0e9e2ed75ab691d88b8c0bf701996eee263a80fb
sha256
f63d157dc0c62a356109fe90351d5c4df8f63a765d7ee111f6de2c6a4a901545
sha512
6cb8d8023882ccfb7d4f2cb2814c31439cec8279fc28bab3317a1a4d389a1f3732146a4f46720978ee4d7d21c7c9744d4805c8ea48d264109edd9b26bd63b884
ripemd-160
73048c72c5b8f74bed19f938a31e727c8704c20e
Diameter
42001648
Circumference
131952068.79546
Area
1.3855510866047E+15
Volume
3.8796952683726E+22
Surface area
5.5422043464189E+15
Circumference
131952068.79546
Perimeter
84003296
Area
441034608678976
Diagonal
29699650.12181
Surface area
2646207652073856
Volume
9.262090194776E+21
Space diagonal
36374494.168812
Perimeter
63002472
Area
1.9097358753206E+14
Altitude
18187247.084406
Surface area
1.9097358753206E+14
Volume
1.0915477974479E+21
Height
9899883.3739368