21306518 is an even 8-digits composite number following 21306517
and preceding 21306519 . In scientific notation, it is written as 2.1306518 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 10653258 positive integers (up to 21306518) that are relatively prime to 21306518.
21306518 has 4 divisors, whose sum is 31959780
The reverse of 21306518 is 81560312
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million three hundred six thousand five hundred eighteen
Scientific notation
2.1306518 × 10^7
Engineering notation
2.1306518 × 10^6
Prime Factorization
2 × 10653259
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21306518
Product of the distinct prime numbers
The prime factorization of 21306518 is 2 × 10653259.
Since it has a total of 2 prime factors.
2 , 2 , 7 , 38 , 942 , 833 , 8068 , 793 , 25926 , 94169 , 372372 , 943881 , 5255752 , 6700284 , 6112691 , 5814329 , 146765845 , 567400632 , 5460090257 , 3299218083
n×2
42613036
n×3
63919554
n×4
85226072
n×5
106532590
n÷2
10653259
n÷3
7102172.6666667
n÷3
5326629.5
n÷5
4261303.6
n2
453967709284324
n3
9.6724711692852E+21
n4
2.0608668107286E+29
n5
4.3909895798391E+36
2 √n
4615.8983957622
3 √n
277.22825655719
4 √n
67.940403264642
5 √n
29.221499384723
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
-21306517
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 21306518 can be divided by 4 positive divisors.
The sum of these divisors (counting 21306518) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001010001110010010110
3
Ternary
1111002111001022
4
Quaternary
1101101302112
5
Quinary
20423302033
6
Senary
2040401142
8
Octal
121216226
10
Decimal
21306518
12
Duodecimal
71761b2
16
Hexadecimal
1451c96
20
Vigesimal
6d365i
36
Base36
coo7q
md5
09dc1470237f977e0f376c617665bba9
sha1
20d5001910bca3a836995ed2794a149636abf106
sha256
5615e6e2e59fb54981073693e566ba243e9cb45eaeb3a3102b78b60919dc0799
sha512
d8c3607eda1c78fc971b76c974ccf1ec13a0bfe5f0375611fa5a2e0ff01489cd81e7fda50ad430a7347546bf6d5c2835b28547a740c38b65b5169ad95d240a38
ripemd-160
c21792faab72229906241458960945eb59aeec71
Diameter
42613036
Circumference
133872800.84476
Area
1.4261816204546E+15
Volume
4.0515952489981E+22
Surface area
5.7047264818185E+15
Circumference
133872800.84476
Perimeter
85226072
Area
453967709284324
Diagonal
30131966.722546
Surface area
2723806255705944
Volume
9.6724711692852E+21
Space diagonal
36903971.708381
Perimeter
63919554
Area
1.9657378436903E+14
Altitude
18451985.85419
Surface area
1.9657378436903E+14
Volume
1.1399116591055E+21
Height
10043988.907515