20131811 is an odd 8-digits composite number following 20131810
and preceding 20131812 . In scientific notation, it is written as 2.0131811 × 10^7.
The sum of its digits is 17. It has a total of 4 prime factors and 16 positive divisors.
There are 15901920 positive integers (up to 20131811) that are relatively prime to 20131811.
20131811 has 16 divisors, whose sum is 24879360
The reverse of 20131811 is 11813102
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million one hundred thirty-one thousand eight hundred eleven
Scientific notation
2.0131811 × 10^7
Engineering notation
2.0131811 × 10^6
Prime Factorization
7 × 37 × 19 × 4091
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20131811
Product of the distinct prime numbers
The prime factorization of 20131811 is 7 × 37 × 19 × 4091.
Since it has a total of 4 prime factors.
7 , 2 , 43 , 23 , 229 , 736 , 9306 , 9081 , 20666 , 49251 , 799999 , 645557 , 8233831 , 4469763 , 11449786 , 36807650 , 642493972 , 561376180 , 5906086703 , 8402989999
n×2
40263622
n×3
60395433
n×4
80527244
n×5
100659055
n÷2
10065905.5
n÷3
6710603.6666667
n÷3
5032952.75
n÷5
4026362.2
n2
405289814139721
n3
8.159217938486E+21
n4
1.6425983344541E+29
n5
3.3068479218145E+36
2 √n
4486.8486713951
3 √n
272.03677325051
4 √n
66.983943384927
5 √n
28.891930993577
1 , 7 , 19 , 37 , 133 , 259 , 703 , 4091 , 4921 , 28637 , 77729 , 151367 , 544103 , 1059569 , 2875973 , 20131811
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
-20131810
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 20131811 can be divided by 16 positive divisors.
The sum of these divisors (counting 20131811) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110010111111100011
3
Ternary
1101212210122122
4
Quaternary
1030302333203
5
Quinary
20123204221
6
Senary
1555254455
8
Octal
114627743
10
Decimal
20131811
12
Duodecimal
68aa42b
16
Hexadecimal
1332fe3
20
Vigesimal
65g9ab
36
Base36
bzhsz
md5
3487c8060cfc6a97d87f0b6b033fd026
sha1
73daefc014db7792155bb8f561c1764719c336f0
sha256
1b21eeed414b8abea31fb272fa324080d614fd5b0450badf7e872c81bdfe7368
sha512
fd557d31a077fabfa2f31bf89b368bec781d13d760a475288d335c03919210ea4bcd79154466a4e6a4d2b4814e9441e549337891e0d2a283e595a57a8178947f
ripemd-160
d9dcb4ebf9a4d1c58adef243b1321462118ef0d4
Diameter
40263622
Circumference
126491899.08212
Area
1.2732555026761E+15
Volume
3.4177252179448E+22
Surface area
5.0930220107045E+15
Circumference
126491899.08212
Perimeter
80527244
Area
405289814139721
Diagonal
28470680.151332
Surface area
2431738884838326
Volume
8.159217938486E+21
Space diagonal
34869319.500374
Perimeter
60395433
Area
1.7549563747004E+14
Altitude
17434659.750187
Surface area
1.7549563747004E+14
Volume
9.6157305558039E+20
Height
9490226.7171106