20115809 is an odd 8-digits composite number following 20115808
and preceding 20115810 . In scientific notation, it is written as 2.0115809 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 17221680 positive integers (up to 20115809) that are relatively prime to 20115809.
20115809 has 8 divisors, whose sum is 23016768
The reverse of 20115809 is 90851102
Previous prime number is 1531
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred fifteen thousand eight hundred nine
Scientific notation
2.0115809 × 10^7
Engineering notation
2.0115809 × 10^6
Prime Factorization
7 × 1531 × 1877
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20115809
Product of the distinct prime numbers
The prime factorization of 20115809 is 7 × 1531 × 1877.
Since it has a total of 3 prime factors.
7 , 6 , 51 , 90 , 89 , 641 , 9994 , 998 , 9093 , 48004 , 241454 , 581607 , 5555120 , 8526101 , 68315897 , 137832 , 977180660 , 230375664 , 5335657381 , 159324755
n×2
40231618
n×3
60347427
n×4
80463236
n×5
100579045
n÷2
10057904.5
n÷3
6705269.6666667
n÷3
5028952.25
n÷5
4023161.8
n2
404645771724481
n3
8.1397770566673E+21
n4
1.637382005745E+29
n5
3.2937263687603E+36
2 √n
4485.065105436
3 √n
271.96467696577
4 √n
66.970628677324
5 √n
28.887336516261
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20115808
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20115809 can be divided by 8 positive divisors.
The sum of these divisors (counting 20115809) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101111000101100001
3
Ternary
1101211222200222
4
Quaternary
1030233011201
5
Quinary
20122201214
6
Senary
1555052425
8
Octal
114570541
10
Decimal
20115809
12
Duodecimal
68a1115
16
Hexadecimal
132f161
20
Vigesimal
65e9a9
36
Base36
bz5gh
md5
fadbdf40ac06037529554c3ec1bbb6bf
sha1
6c3226f8c2a65a39777fda4a1efbbdf33f974f7c
sha256
b7f65dd4203bdcc3484228e8ec0066dd10d14fd42f84e44e5a61d1d2f65824cc
sha512
e165255ab5303bc3b7932e95eddccf1e37f6e3062cbd384d6e2f14f1a029d7cbbb5a06bf0e535f14e0580f9485f244d3c74ec995dd4d5632fd654bf7598578f0
ripemd-160
7176974d60035395fdf302e19fafc54efd435b29
Diameter
40231618
Circumference
126391355.55083
Area
1.2712321837558E+15
Volume
3.4095818404113E+22
Surface area
5.0849287350232E+15
Circumference
126391355.55083
Perimeter
80463236
Area
404645771724481
Diagonal
28448049.905907
Surface area
2427874630346886
Volume
8.1397770566673E+21
Space diagonal
34841603.223351
Perimeter
60347427
Area
1.7521675892368E+14
Altitude
17420801.611676
Surface area
1.7521675892368E+14
Volume
9.5928192568602E+20
Height
9482683.3019689