21000605 is an odd 8-digits composite number following 21000604
and preceding 21000606 . In scientific notation, it is written as 2.1000605 × 10^7.
The sum of its digits is 14. It has a total of 3 prime factors and 8 positive divisors.
There are 15916176 positive integers (up to 21000605) that are relatively prime to 21000605.
21000605 has 8 divisors, whose sum is 26527200
The reverse of 21000605 is 50600012
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 14
Digital Root 5
Name
twenty-one million six hundred five
Scientific notation
2.1000605 × 10^7
Engineering notation
2.1000605 × 10^6
Prime Factorization
5 × 19 × 221059
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21000605
Product of the distinct prime numbers
The prime factorization of 21000605 is 5 × 19 × 221059.
Since it has a total of 3 prime factors.
3 , 9 , 21 , 87 , 512 , 951 , 5512 , 1542 , 20707 , 81380 , 542835 , 691880 , 7411254 , 5596798 , 84172315 , 81038805 , 771673898 , 172359247 , 4184148732 , 8045470173
n×2
42001210
n×3
63001815
n×4
84002420
n×5
105003025
n÷2
10500302.5
n÷3
7000201.6666667
n÷3
5250151.25
n÷5
4200121
n2
441025410366025
n3
9.2618004380598E+21
n4
1.9450341258852E+29
n5
4.0846893389236E+36
2 √n
4582.6417053922
3 √n
275.89506705573
4 √n
67.695211835049
5 √n
29.137102468069
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
-21000604
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 21000605 can be divided by 8 positive divisors.
The sum of these divisors (counting 21000605) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111000110011101
3
Ternary
1110111221102012
4
Quaternary
1100013012131
5
Quinary
20334004410
6
Senary
2030041005
8
Octal
120070635
10
Decimal
21000605
12
Duodecimal
7049165
16
Hexadecimal
140719d
20
Vigesimal
6b51a5
36
Base36
ci465
md5
a6ba180ca783552e3ede7d2860f6ad3d
sha1
f39ee636fdd524e8d22f03c9d7cc06a392c5f9af
sha256
2d48423e9e4aa588de8e6854fa40c809470bacbef302d45af369358e228e86cf
sha512
e0ba363bdd6970444a923a40ec888d434397a860689778503fe1139b5a40f7fba71deaa444c2a8c9b30acd7c70ed4e89e018d16ccb6476f680cf77788c21eafc
ripemd-160
2b6eea075d083f89e9600995cce20ecf970e5f11
Diameter
42001210
Circumference
131950692.77788
Area
1.3855221892523E+15
Volume
3.8795738953631E+22
Surface area
5.5420887570093E+15
Circumference
131950692.77788
Perimeter
84002420
Area
441025410366025
Diagonal
29699340.40904
Surface area
2646152462196150
Volume
9.2618004380598E+21
Space diagonal
36374114.849685
Perimeter
63001815
Area
1.9096960454572E+14
Altitude
18187057.424842
Surface area
1.9096960454572E+14
Volume
1.0915136492914E+21
Height
9899780.1363467