20809917 is an odd 8-digits composite number following 20809916
and preceding 20809918 . In scientific notation, it is written as 2.0809917 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors.
There are 13182048 positive integers (up to 20809917) that are relatively prime to 20809917.
20809917 has 24 divisors, whose sum is 31574400
The reverse of 20809917 is 71990802
Previous prime number is 229
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million eight hundred nine thousand nine hundred seventeen
Scientific notation
2.0809917 × 10^7
Engineering notation
2.0809917 × 10^6
Prime Factorization
3 × 3 × 23 × 229 × 439
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
6936639
Product of the distinct prime numbers
The prime factorization of 20809917 is 3 × 3 × 23 × 229 × 439.
Since it has a total of 5 prime factors.
10 , 3 , 33 , 26 , 982 , 439 , 7074 , 1912 , 92284 , 94908 , 297037 , 317431 , 1421335 , 1546272 , 35625389 , 52623336 , 642029035 , 31939342 , 1331705794 , 3302129348
n×2
41619834
n×3
62429751
n×4
83239668
n×5
104049585
n÷2
10404958.5
n÷3
6936639
n÷3
5202479.25
n÷5
4161983.4
n2
433052645546889
n3
9.0117896104612E+21
n4
1.8753459381516E+29
n5
3.9025793319222E+36
2 √n
4561.7887938834
3 √n
275.05747338701
4 √n
67.541015641485
5 √n
29.083995555708
1 , 3 , 9 , 23 , 69 , 207 , 229 , 439 , 687 , 1317 , 2061 , 3951 , 5267 , 10097 , 15801 , 30291 , 47403 , 90873 , 100531 , 301593 , 904779 , 2312213 , 6936639 , 20809917
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
-20809916
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 20809917 can be divided by 24 positive divisors.
The sum of these divisors (counting 20809917) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001111011000100010111101
3
Ternary
1110011020211200
4
Quaternary
1033120202331
5
Quinary
20311404132
6
Senary
2022010113
8
Octal
117304275
10
Decimal
20809917
12
Duodecimal
6b76939
16
Hexadecimal
13d88bd
20
Vigesimal
6a14fh
36
Base36
ce119
md5
b49d510e12f2d79380f584d3852f02fe
sha1
1a5821a1342f02442f9f15e65ea6a73eba89e499
sha256
99d460eccdfe1ff5386461d2437d54d30ed7092668d0b41f04fe592c87972206
sha512
431e353021639715c242ad61cbb0af9b9436488dcfb6a2bded5db212e8c0e25c697c942d753158d835cdceb27a27bd46a45d777be27a616829d1851c13d6e5e0
ripemd-160
a22322dade320f2eb5fb8c66bb2d70d832136316
Diameter
41619834
Circumference
130752564.73803
Area
1.3604750098677E+15
Volume
3.7748496047896E+22
Surface area
5.4419000394709E+15
Circumference
130752564.73803
Perimeter
83239668
Area
433052645546889
Diagonal
29429666.853258
Surface area
2598315873281334
Volume
9.0117896104612E+21
Space diagonal
36043833.545291
Perimeter
62429751
Area
1.8751729610983E+14
Altitude
18021916.772646
Surface area
1.8751729610983E+14
Volume
1.0620495906973E+21
Height
9809888.9510861