21000218 is an even 8-digits composite number following 21000217
and preceding 21000219 . In scientific notation, it is written as 2.1000218 × 10^7.
The sum of its digits is 14. It has a total of 2 prime factors and 4 positive divisors.
There are 10500108 positive integers (up to 21000218) that are relatively prime to 21000218.
21000218 has 4 divisors, whose sum is 31500330
The reverse of 21000218 is 81200012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 14
Digital Root 5
Name
twenty-one million two hundred eighteen
Scientific notation
2.1000218 × 10^7
Engineering notation
2.1000218 × 10^6
Prime Factorization
2 × 10500109
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21000218
Product of the distinct prime numbers
The prime factorization of 21000218 is 2 × 10500109.
Since it has a total of 2 prime factors.
1 , 1 , 34 , 87 , 414 , 797 , 3280 , 9525 , 36739 , 4770 , 332714 , 197588 , 5818602 , 3919149 , 36117067 , 99724037 , 90881240 , 290713601 , 4790900345 , 542105000
n×2
42000436
n×3
63000654
n×4
84000872
n×5
105001090
n÷2
10500109
n÷3
7000072.6666667
n÷3
5250054.5
n÷5
4200043.6
n2
441009156047524
n3
9.261288416994E+21
n4
1.9448907571775E+29
n5
4.0843129886912E+36
2 √n
4582.5994806441
3 √n
275.89337231016
4 √n
67.694899960367
5 √n
29.136995079337
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
-21000217
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 21000218 can be divided by 4 positive divisors.
The sum of these divisors (counting 21000218) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000111000000011010
3
Ternary
1110111220212212
4
Quaternary
1100013000122
5
Quinary
20334001333
6
Senary
2030035122
8
Octal
120070032
10
Decimal
21000218
12
Duodecimal
7048aa2
16
Hexadecimal
140701a
20
Vigesimal
6b50ai
36
Base36
ci3ve
md5
e6fbc62d649abed884b9ea241c289ee8
sha1
929a0c0e3028e61aa2145a8a716cfdd632762d54
sha256
4c2b5983719f4b651ad514d4ebf579f384f4201c7f775daec4ec6ba90584ae7e
sha512
58559a9722f1ed150a932ff4c6e199de2950cfcce23fd6ff1354dc8909d530c11fc603184f8fad5787c8ad90f1e530cb4ea27f5160407ff9f1c9ba87b094b7b3
ripemd-160
88370aa45b7a3fb8ce4315a736ba710bb6d88fbf
Diameter
42000436
Circumference
131948261.18517
Area
1.3854711248047E+15
Volume
3.8793594204806E+22
Surface area
5.5418844992189E+15
Circumference
131948261.18517
Perimeter
84000872
Area
441009156047524
Diagonal
29698793.108392
Surface area
2646054936285144
Volume
9.261288416994E+21
Space diagonal
36373444.546022
Perimeter
63000654
Area
1.9096256621935E+14
Altitude
18186722.273011
Surface area
1.9096256621935E+14
Volume
1.0914533070301E+21
Height
9899597.7027972