20809747 is an odd 8-digits composite number following 20809746
and preceding 20809748 . In scientific notation, it is written as 2.0809747 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 17836920 positive integers (up to 20809747) that are relatively prime to 20809747.
20809747 has 4 divisors, whose sum is 23782576
The reverse of 20809747 is 74790802
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million eight hundred nine thousand seven hundred forty-seven
Scientific notation
2.0809747 × 10^7
Engineering notation
2.0809747 × 10^6
Prime Factorization
7 × 2972821
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20809747
Product of the distinct prime numbers
The prime factorization of 20809747 is 7 × 2972821.
Since it has a total of 2 prime factors.
10 , 10 , 75 , 29 , 357 , 929 , 3202 , 9063 , 21640 , 59165 , 10985 , 911305 , 4499098 , 6228657 , 95510438 , 44243485 , 579440748 , 216302932 , 6324386787 , 2492271215
n×2
41619494
n×3
62429241
n×4
83238988
n×5
104048735
n÷2
10404873.5
n÷3
6936582.3333333
n÷3
5202436.75
n÷5
4161949.4
n2
433045570204009
n3
9.0115687554162E+21
n4
1.8752846587332E+29
n5
3.9024199301218E+36
2 √n
4561.7701608038
3 √n
275.05672438678
4 √n
67.54087770235
5 √n
29.083948037062
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
-20809746
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 20809747 can be divided by 4 positive divisors.
The sum of these divisors (counting 20809747) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111011000100000010011
3
Ternary
1110011020121101
4
Quaternary
1033120200103
5
Quinary
20311402442
6
Senary
2022005231
8
Octal
117304023
10
Decimal
20809747
12
Duodecimal
6b76817
16
Hexadecimal
13d8813
20
Vigesimal
6a1477
36
Base36
ce0wj
md5
a870c6bffc1f9efb277ab1f13ab747e2
sha1
25a263f46fe4034178fdf87da7365adc6dc320bf
sha256
47cfa285ac104642d396aaf8cc8e5728ee76b2fa6ca59f8c6bdeca183fb87c5e
sha512
5aad6e4ca074787c246667a53f3fe817a4842e3beb10e554a804d67cd9eedcaa992c32ad4b40451d7b5c14d72afcfa12e8dbaccb47ec68800a4a6df39c862316
ripemd-160
cbe0a842abfab6cf2531fa53aa17beed6778b9ab
Diameter
41619494
Circumference
130751496.59652
Area
1.3604527820225E+15
Volume
3.7747570932446E+22
Surface area
5.4418111280901E+15
Circumference
130751496.59652
Perimeter
83238988
Area
433045570204009
Diagonal
29429426.436953
Surface area
2598273421224054
Volume
9.0115687554162E+21
Space diagonal
36043539.096654
Perimeter
62429241
Area
1.8751423239649E+14
Altitude
18021769.548327
Surface area
1.8751423239649E+14
Volume
1.0620235626806E+21
Height
9809808.8123176