20109905 is an odd 8-digits composite number following 20109904
and preceding 20109906 . In scientific notation, it is written as 2.0109905 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 15449280 positive integers (up to 20109905) that are relatively prime to 20109905.
20109905 has 16 divisors, whose sum is 25099200
The reverse of 20109905 is 50990102
Previous prime number is 419
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred nine thousand nine hundred five
Scientific notation
2.0109905 × 10^7
Engineering notation
2.0109905 × 10^6
Prime Factorization
5 × 29 × 419 × 331
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20109905
Product of the distinct prime numbers
The prime factorization of 20109905 is 5 × 29 × 419 × 331.
Since it has a total of 4 prime factors.
2 , 7 , 21 , 49 , 168 , 389 , 9590 , 8190 , 93103 , 76666 , 121408 , 564039 , 8870032 , 3035296 , 76758198 , 29693092 , 670059612 , 74372116 , 1211820952 , 6980519923
n×2
40219810
n×3
60329715
n×4
80439620
n×5
100549525
n÷2
10054952.5
n÷3
6703301.6666667
n÷3
5027476.25
n÷5
4021981
n2
404408279109025
n3
8.132612074096E+21
n4
1.6354605621192E+29
n5
3.2888956535464E+36
2 √n
4484.406872709
3 √n
271.93806710604
4 √n
66.965714158135
5 √n
28.885640627609
1 , 5 , 29 , 145 , 331 , 419 , 1655 , 2095 , 9599 , 12151 , 47995 , 60755 , 138689 , 693445 , 4021981 , 20109905
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
-20109904
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 20109905 can be divided by 16 positive divisors.
The sum of these divisors (counting 20109905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100101101101001010001
3
Ternary
1101211200121022
4
Quaternary
1030231221101
5
Quinary
20122004110
6
Senary
1555005225
8
Octal
114555121
10
Decimal
20109905
12
Duodecimal
6899815
16
Hexadecimal
132da51
20
Vigesimal
65def5
36
Base36
bz0wh
md5
0677c61e5d3c7d207d8479836320287f
sha1
928f88a135a9520c6484b4f694d55f6240a32629
sha256
1edd91de2667f28769ca950c521608311a85539035bd92d9cdbc0e8f4777af43
sha512
1b162d4540839d520db50949dbb22b8bbde205023400fa5d3d2f91fafdf7d8152e3a09085ac0164cb61d177822bbe10083cbededd03d554407ff8f23903509f1
ripemd-160
057be58edd4cf08bbc4593ba77d248ed6095031c
Diameter
40219810
Circumference
126354259.62478
Area
1.2704860786998E+15
Volume
3.4065805795301E+22
Surface area
5.0819443147992E+15
Circumference
126354259.62478
Perimeter
80439620
Area
404408279109025
Diagonal
28439700.389035
Surface area
2426449674654150
Volume
8.132612074096E+21
Space diagonal
34831377.195383
Perimeter
60329715
Area
1.7511392160458E+14
Altitude
17415688.597692
Surface area
1.7511392160458E+14
Volume
9.5843752439214E+20
Height
9479900.1296782