21018086 is an even 8-digits composite number following 21018085
and preceding 21018087 . In scientific notation, it is written as 2.1018086 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 9836544 positive integers (up to 21018086) that are relatively prime to 21018086.
21018086 has 16 divisors, whose sum is 33565104
The reverse of 21018086 is 68081012
Previous prime number is 193
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million eighteen thousand eighty-six
Scientific notation
2.1018086 × 10^7
Engineering notation
2.1018086 × 10^6
Prime Factorization
2 × 17 × 193 × 3203
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21018086
Product of the distinct prime numbers
The prime factorization of 21018086 is 2 × 17 × 193 × 3203.
Since it has a total of 4 prime factors.
6 , 2 , 4 , 14 , 969 , 762 , 5469 , 9835 , 67463 , 12689 , 909927 , 791413 , 591028 , 5630198 , 43034829 , 88884943 , 321274833 , 814457658 , 930305372 , 4389132985
n×2
42036172
n×3
63054258
n×4
84072344
n×5
105090430
n÷2
10509043
n÷3
7006028.6666667
n÷3
5254521.5
n÷5
4203617.2
n2
441759939103396
n3
9.2849483914299E+21
n4
1.9515184379664E+29
n5
4.1017182359763E+36
2 √n
4584.5486146403
3 √n
275.97159793152
4 √n
67.709294891029
5 √n
29.141951625322
1 , 2 , 17 , 34 , 193 , 386 , 3203 , 3281 , 6406 , 6562 , 54451 , 108902 , 618179 , 1236358 , 10509043 , 21018086
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21018085
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21018086 can be divided by 16 positive divisors.
The sum of these divisors (counting 21018086) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001011010111100110
3
Ternary
1110112211101122
4
Quaternary
1100023113212
5
Quinary
20340034321
6
Senary
2030253542
8
Octal
120132746
10
Decimal
21018086
12
Duodecimal
70572b2
16
Hexadecimal
140b5e6
20
Vigesimal
6b7546
36
Base36
cihnq
md5
570220fce972e256f7a485c7b3222fef
sha1
8157e155d3769a508f0dccfc5e18741a952f822b
sha256
31254325fea4953a444f507c63af08cf2e14db770289eb399b46ac2ece44fb3b
sha512
9045e50f36f71619172ece3be9190cfaf89a62e84a5a6de89c4bdeacf733ea9f664ac0e1a67ab2fe191ddef4818c06313c30796ddbd9d9280050bf1d173323aa
ripemd-160
5ba10e325a4bc69bccd75e098c61457da86e0e7c
Diameter
42036172
Circumference
132060529.14024
Area
1.3878297793375E+15
Volume
3.8892700873969E+22
Surface area
5.55131911735E+15
Circumference
132060529.14024
Perimeter
84072344
Area
441759939103396
Diagonal
29724062.276324
Surface area
2650559634620376
Volume
9.2849483914299E+21
Space diagonal
36404392.829852
Perimeter
63054258
Area
1.912876648189E+14
Altitude
18202196.414926
Surface area
1.912876648189E+14
Volume
1.0942416617579E+21
Height
9908020.7587747