21002018 is an even 8-digits composite number following 21002017
and preceding 21002019 . In scientific notation, it is written as 2.1002018 × 10^7.
The sum of its digits is 14. It has a total of 2 prime factors and 4 positive divisors.
There are 10501008 positive integers (up to 21002018) that are relatively prime to 21002018.
21002018 has 4 divisors, whose sum is 31503030
The reverse of 21002018 is 81020012
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 thousand eighteen
Scientific notation
2.1002018 × 10^7
Engineering notation
2.1002018 × 10^6
Prime Factorization
2 × 10501009
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21002018
Product of the distinct prime numbers
The prime factorization of 21002018 is 2 × 10501009.
Since it has a total of 2 prime factors.
3 , 2 , 50 , 93 , 931 , 636 , 8764 , 8097 , 96321 , 46393 , 692445 , 59780 , 5025554 , 9746849 , 44265158 , 8484743 , 374194770 , 663192633 , 9400560117 , 8857437638
n×2
42004036
n×3
63006054
n×4
84008072
n×5
105010090
n÷2
10501009
n÷3
7000672.6666667
n÷3
5250504.5
n÷5
4200403.6
n2
441084760072324
n3
9.2636700705646E+21
n4
1.9455576556806E+29
n5
4.0860636904642E+36
2 √n
4582.7958715177
3 √n
275.90125467091
4 √n
67.696350503685
5 √n
29.137494548372
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
-21002017
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 21002018 can be divided by 4 positive divisors.
The sum of these divisors (counting 21002018) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000111011100100010
3
Ternary
1110112000100112
4
Quaternary
1100013130202
5
Quinary
20334031033
6
Senary
2030051322
8
Octal
120073442
10
Decimal
21002018
12
Duodecimal
7049b42
16
Hexadecimal
1407722
20
Vigesimal
6b550i
36
Base36
ci59e
md5
61e308989ac505443ea97baa523d4d8c
sha1
3e506c88071df3e71dd9decba130e59fa333acd2
sha256
9002608664cf91e9f85d95817cad8d986acd5bd6e3aecbadf6f6fd6a0e9ead28
sha512
ceb0711e7af2f12e9bfcdc008509618f8bcdab7d68e4ff6d94aeba810a8cfff562c2cdcf5d694e08eac14c940e0fffce27e3014efc893fc158482306a8d4ed22
ripemd-160
c1544f068445993412cf7e33ed337a2eecfa49f4
Diameter
42004036
Circumference
131959570.91872
Area
1.3857086418536E+15
Volume
3.8803570451954E+22
Surface area
5.5428345674145E+15
Circumference
131959570.91872
Perimeter
84008072
Area
441084760072324
Diagonal
29701338.692804
Surface area
2646508560433944
Volume
9.2636700705646E+21
Space diagonal
36376562.237476
Perimeter
63006054
Area
1.909953037224E+14
Altitude
18188281.118738
Surface area
1.909953037224E+14
Volume
1.0917339875952E+21
Height
9900446.2309346