20806872 is an even 8-digits composite number following 20806871
and preceding 20806873 . In scientific notation, it is written as 2.0806872 × 10^7.
The sum of its digits is 33. It has a total of 5 prime factors and 16 positive divisors.
There are 6935616 positive integers (up to 20806872) that are relatively prime to 20806872.
20806872 has 16 divisors, whose sum is 52017240
The reverse of 20806872 is 27860802
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million eight hundred six thousand eight hundred seventy-two
Scientific notation
2.0806872 × 10^7
Engineering notation
2.0806872 × 10^6
Prime Factorization
2 × 2 × 2 × 3 × 866953
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5201718
Product of the distinct prime numbers
The prime factorization of 20806872 is 2 × 2 × 2 × 3 × 866953.
Since it has a total of 5 prime factors.
7 , 2 , 72 , 19 , 532 , 295 , 490 , 2360 , 84879 , 39317 , 150793 , 698131 , 3090344 , 7009708 , 6805163 , 89173506 , 947172278 , 769011463 , 6370258978 , 9069784718
n×2
41613744
n×3
62420616
n×4
83227488
n×5
104034360
n÷2
10403436
n÷3
6935624
n÷3
5201718
n÷5
4161374.4
n2
432925922424384
n3
9.0078342533661E+21
n4
1.87424854307E+29
n5
3.8997249531845E+36
2 √n
4561.4550310181
3 √n
275.04405685326
4 √n
67.538544780133
5 √n
29.08314436586
1 , 2 , 3 , 4 , 6 , 8 , 12 , 24 , 866953 , 1733906 , 2600859 , 3467812 , 5201718 , 6935624 , 10403436 , 20806872
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
-20806871
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 20806872 can be divided by 16 positive divisors.
The sum of these divisors (counting 20806872) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010111110011011000
3
Ternary
1110011002122220
4
Quaternary
1033113303120
5
Quinary
20311304442
6
Senary
2021544040
8
Octal
117276330
10
Decimal
20806872
12
Duodecimal
6b75020
16
Hexadecimal
13d7cd8
20
Vigesimal
6a0h3c
36
Base36
cdyoo
md5
af6c53cebf2954b7a2ace19427c5ab40
sha1
30eba5314be5e04b737eb508a8509017c4b2935c
sha256
0cfb4a315f8a0a2497cc43905a1dd896133046e7047ee782b316a793409fc724
sha512
1e2b25a70c574ba494aa96d98fddea7bba707480ade7aa1ee93ddff7a9eac04571a5ba8a443c1c13ed4a6fd8426c4fe9805b7837f3ef4292da968ffb0a14d38d
ripemd-160
cea74308cbcd3908b56f545725c40bdd121ae613
Diameter
41613744
Circumference
130733432.43877
Area
1.360076897437E+15
Volume
3.7731927886839E+22
Surface area
5.4403075897481E+15
Circumference
130733432.43877
Perimeter
83227488
Area
432925922424384
Diagonal
29425360.572961
Surface area
2597555534546304
Volume
9.0078342533661E+21
Space diagonal
36038559.450582
Perimeter
62420616
Area
1.8746242338816E+14
Altitude
18019279.725291
Surface area
1.8746242338816E+14
Volume
1.0615834473933E+21
Height
9808453.5243203