20131645 is an odd 8-digits composite number following 20131644
and preceding 20131646 . In scientific notation, it is written as 2.0131645 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 16105312 positive integers (up to 20131645) that are relatively prime to 20131645.
20131645 has 4 divisors, whose sum is 24157980
The reverse of 20131645 is 54613102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred thirty-one thousand six hundred forty-five
Scientific notation
2.0131645 × 10^7
Engineering notation
2.0131645 × 10^6
Prime Factorization
5 × 4026329
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20131645
Product of the distinct prime numbers
The prime factorization of 20131645 is 5 × 4026329.
Since it has a total of 2 prime factors.
3 , 10 , 12 , 67 , 50 , 230 , 4456 , 4836 , 32026 , 91137 , 37727 , 128149 , 8063074 , 8921589 , 67125997 , 7533091 , 810139362 , 691744804 , 1156112514 , 2050896261
n×2
40263290
n×3
60394935
n×4
80526580
n×5
100658225
n÷2
10065822.5
n÷3
6710548.3333333
n÷3
5032911.25
n÷5
4026329
n2
405283130406025
n3
8.1590161058228E+21
n4
1.6425441579171E+29
n5
3.306711588401E+36
2 √n
4486.8301728503
3 √n
272.03602554118
4 √n
66.983805302851
5 √n
28.891883346831
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
-20131644
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 20131645 can be divided by 4 positive divisors.
The sum of these divisors (counting 20131645) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110010111100111101
3
Ternary
1101212210102111
4
Quaternary
1030302330331
5
Quinary
20123203040
6
Senary
1555254021
8
Octal
114627475
10
Decimal
20131645
12
Duodecimal
68aa311
16
Hexadecimal
1332f3d
20
Vigesimal
65g925
36
Base36
bzhod
md5
3879a42670877721bea3674681f0158f
sha1
bd0b884b0f80b7582046fa02de9be1dcf47e635e
sha256
cfe1492daf9663c282b1ad63d87586937e77f85b2d773be6f2b9dc13a61b3a31
sha512
5ffbcb3ea98bb1d9775a1a277ea180357ab51fa0b1849e06794fdc350e2e654c8e8e5592a7ec14569a974c1b57501389332b6eb2ef04de986174b553984e379b
ripemd-160
2c7a06d720f730b5e08e891e1062b317e6b730a5
Diameter
40263290
Circumference
126490856.07336
Area
1.2732345051074E+15
Volume
3.4176406744765E+22
Surface area
5.0929380204298E+15
Circumference
126490856.07336
Perimeter
80526580
Area
405283130406025
Diagonal
28470445.391881
Surface area
2431698782436150
Volume
8.1590161058228E+21
Space diagonal
34869031.97994
Perimeter
60394935
Area
1.7549274332845E+14
Altitude
17434515.98997
Surface area
1.7549274332845E+14
Volume
9.6154926937293E+20
Height
9490148.4639602