20011809 is an odd 8-digits composite number following 20011808
and preceding 20011810 . In scientific notation, it is written as 2.0011809 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 13341204 positive integers (up to 20011809) that are relatively prime to 20011809.
20011809 has 4 divisors, whose sum is 26682416
The reverse of 20011809 is 90811002
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million eleven thousand eight hundred nine
Scientific notation
2.0011809 × 10^7
Engineering notation
2.0011809 × 10^6
Prime Factorization
3 × 6670603
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20011809
Product of the distinct prime numbers
The prime factorization of 20011809 is 3 × 6670603.
Since it has a total of 2 prime factors.
2 , 5 , 3 , 12 , 612 , 485 , 5912 , 8567 , 52489 , 93809 , 135589 , 40273 , 4219615 , 6509965 , 17642496 , 33124981 , 493257563 , 377471130 , 179849993 , 5325273624
n×2
40023618
n×3
60035427
n×4
80047236
n×5
100059045
n÷2
10005904.5
n÷3
6670603
n÷3
5002952.25
n÷5
4002361.8
n2
400472499452481
n3
8.0141791687957E+21
n4
1.6037822281772E+29
n5
3.2094583627876E+36
2 √n
4473.4560465036
3 √n
271.49517541088
4 √n
66.883899755499
5 √n
28.857404682315
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
-20011808
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 20011809 can be divided by 4 positive divisors.
The sum of these divisors (counting 20011809) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010101101100100001
3
Ternary
1101122201001010
4
Quaternary
1030111230201
5
Quinary
20110334214
6
Senary
1552531133
8
Octal
114255441
10
Decimal
20011809
12
Duodecimal
6850aa9
16
Hexadecimal
1315b21
20
Vigesimal
6519a9
36
Base36
bwx7l
md5
ebe199f65a66442b4354787f5e40525a
sha1
fd1702b35dcbf200b2ee89e3aeacb38b55f4037d
sha256
1f2b146943e85b14e425ae1cb6b5e7c103e3b9fa9b627ca645800a40e0a5c8b9
sha512
6aa51fa024cd7047c09910c9aa1f1d1b9c09beac65e910b9badc9fbb2335e29a12cfe922a55af026b7ed0fcff30c86b6596a683a6266f49621ce3eb9a376e585
ripemd-160
d09da5a44c3ba5a66100d5fac53b7807b9ee1f44
Diameter
40023618
Circumference
125737904.27888
Area
1.2581214622447E+15
Volume
3.3569715201654E+22
Surface area
5.0324858489786E+15
Circumference
125737904.27888
Perimeter
80047236
Area
400472499452481
Diagonal
28300971.69542
Surface area
2402834996714886
Volume
8.0141791687957E+21
Space diagonal
34661469.939364
Perimeter
60035427
Area
1.7340967902145E+14
Altitude
17330734.969682
Surface area
1.7340967902145E+14
Volume
9.444800726499E+20
Height
9433657.2318067