20809930 is an even 8-digits composite number following 20809929
and preceding 20809931 . In scientific notation, it is written as 2.0809930 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 8309952 positive integers (up to 20809930) that are relatively prime to 20809930.
20809930 has 16 divisors, whose sum is 37521000
The reverse of 20809930 is 03990802
Previous prime number is 757
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million eight hundred nine thousand nine hundred thirty
Scientific notation
2.0809930 × 10^7
Engineering notation
2.0809930 × 10^6
Prime Factorization
2 × 5 × 757 × 2749
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20809930
Product of the distinct prime numbers
The prime factorization of 20809930 is 2 × 5 × 757 × 2749.
Since it has a total of 4 prime factors.
8 , 10 , 30 , 37 , 751 , 723 , 5735 , 1849 , 22710 , 31748 , 375592 , 49856 , 1355211 , 4871735 , 19705922 , 9002679 , 72896942 , 439899977 , 2123125716 , 9195037695
n×2
41619860
n×3
62429790
n×4
83239720
n×5
104049650
n÷2
10404965
n÷3
6936643.3333333
n÷3
5202482.5
n÷5
4161986
n2
433053186604900
n3
9.0118064995249E+21
n4
1.8753506242866E+29
n5
3.902591521686E+36
2 √n
4561.7902187628
3 √n
275.05753066333
4 √n
67.541026189737
5 √n
29.083999189474
1 , 2 , 5 , 10 , 757 , 1514 , 2749 , 3785 , 5498 , 7570 , 13745 , 27490 , 2080993 , 4161986 , 10404965 , 20809930
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
-20809929
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 20809930 can be divided by 16 positive divisors.
The sum of these divisors (counting 20809930) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111011000100011001010
3
Ternary
1110011020212011
4
Quaternary
1033120203022
5
Quinary
20311404210
6
Senary
2022010134
8
Octal
117304312
10
Decimal
20809930
12
Duodecimal
6b7694a
16
Hexadecimal
13d88ca
20
Vigesimal
6a14ga
36
Base36
ce11m
md5
f674ce160cf476216ee41c03e59a1186
sha1
95ca36ead87d4c507c183f3d7438486ea71325e4
sha256
e5bafe582b74d8fa0943285a09f681d040f898c145f74e5b7b0402d144b465fb
sha512
a3a3ed94c18b22ccf9c08012a2528468ed781a8382163382e1ba0a3e577fc49bd3c6dd3bc488d4f864e9239dcce8fa4b337921594820877a8c2b316bf5fa89d3
ripemd-160
6080030ed0c52db4be605e8d41a0855b7a027571
Diameter
41619860
Circumference
130752646.41944
Area
1.3604767096516E+15
Volume
3.774856679264E+22
Surface area
5.4419068386064E+15
Circumference
130752646.41944
Perimeter
83239720
Area
433053186604900
Diagonal
29429685.238035
Surface area
2598319119629400
Volume
9.0118064995249E+21
Space diagonal
36043856.061952
Perimeter
62429790
Area
1.8751753039482E+14
Altitude
18021928.030976
Surface area
1.8751753039482E+14
Volume
1.0620515810925E+21
Height
9809895.0793449