20998509 is an odd 8-digits composite number following 20998508
and preceding 20998510 . In scientific notation, it is written as 2.0998509 × 10^7.
The sum of its digits is 42. It has a total of 5 prime factors and 24 positive divisors.
There are 11924640 positive integers (up to 20998509) that are relatively prime to 20998509.
20998509 has 24 divisors, whose sum is 32771808
The reverse of 20998509 is 90589902
Previous prime number is 211
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million nine hundred ninety-eight thousand five hundred nine
Scientific notation
2.0998509 × 10^7
Engineering notation
2.0998509 × 10^6
Prime Factorization
3 × 7 × 7 × 211 × 677
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2999787
Product of the distinct prime numbers
The prime factorization of 20998509 is 3 × 7 × 7 × 211 × 677.
Since it has a total of 5 prime factors.
1 , 4 , 64 , 76 , 484 , 43 , 5584 , 6658 , 3897 , 19537 , 361268 , 255402 , 1591452 , 8941027 , 76629893 , 17574684 , 400220741 , 465143204 , 4323179523 , 5086274009
n×2
41997018
n×3
62995527
n×4
83994036
n×5
104992545
n÷2
10499254.5
n÷3
6999503
n÷3
5249627.25
n÷5
4199701.8
n2
440937380223081
n3
9.2590275470508E+21
n4
1.9442577327799E+29
n5
4.0826513500099E+36
2 √n
4582.413010631
3 √n
275.88588802969
4 √n
67.693522663775
5 √n
29.13652082954
1 , 3 , 7 , 21 , 49 , 147 , 211 , 633 , 677 , 1477 , 2031 , 4431 , 4739 , 10339 , 14217 , 31017 , 33173 , 99519 , 142847 , 428541 , 999929 , 2999787 , 6999503 , 20998509
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20998508
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20998509 can be divided by 24 positive divisors.
The sum of these divisors (counting 20998509) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010000000110100101101101
3
Ternary
1110111211112120
4
Quaternary
1100012211231
5
Quinary
20333423014
6
Senary
2030023153
8
Octal
120064555
10
Decimal
20998509
12
Duodecimal
7047ab9
16
Hexadecimal
140696d
20
Vigesimal
6b4g59
36
Base36
ci2jx
md5
9b976b5a2f18773ebbb96858760ce09a
sha1
026c7e2f563d225d7a7d5bed6f32cd4750049caa
sha256
c2334040fdc0ff7f98426f6cf6d89ba387edc87c07964b71f821e1a3338d286d
sha512
994dce2f610e25e4232675e49124e99c6aefb04ab713d17e617e6a7af4010cfe1b3b72e6cacf8e7119891f17dad8793972cdfd8034033770bd1e6077c96eb697
ripemd-160
c7aac650919795fbc8e2f031edb9fb3d1a8979d4
Diameter
41997018
Circumference
131937523.22148
Area
1.385245634402E+15
Volume
3.8784123894934E+22
Surface area
5.5409825376078E+15
Circumference
131937523.22148
Perimeter
83994036
Area
440937380223081
Diagonal
29696376.217413
Surface area
2645624281338486
Volume
9.2590275470508E+21
Space diagonal
36370484.471192
Perimeter
62995527
Area
1.9093148637567E+14
Altitude
18185242.235596
Surface area
1.9093148637567E+14
Volume
1.0911868609521E+21
Height
9898792.0724712