20191023 is an odd 8-digits composite number following 20191022
and preceding 20191024 . In scientific notation, it is written as 2.0191023 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 12 positive divisors.
There are 13424400 positive integers (up to 20191023) that are relatively prime to 20191023.
20191023 has 12 divisors, whose sum is 29243448
The reverse of 20191023 is 32019102
Previous prime number is 397
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred ninety-one thousand twenty-three
Scientific notation
2.0191023 × 10^7
Engineering notation
2.0191023 × 10^6
Prime Factorization
3 × 3 × 397 × 5651
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6730341
Product of the distinct prime numbers
The prime factorization of 20191023 is 3 × 3 × 397 × 5651.
Since it has a total of 4 prime factors.
1 , 9 , 58 , 31 , 387 , 475 , 7533 , 3033 , 46938 , 5526 , 134356 , 584650 , 6095528 , 4034271 , 8806345 , 89576069 , 373833451 , 281721646 , 2517290305 , 2325211772
n×2
40382046
n×3
60573069
n×4
80764092
n×5
100955115
n÷2
10095511.5
n÷3
6730341
n÷3
5047755.75
n÷5
4038204.6
n2
407677409786529
n3
8.2314239575802E+21
n4
1.6620087045025E+29
n5
3.3557655978811E+36
2 √n
4493.4422217271
3 √n
272.30321847923
4 √n
67.033142711103
5 √n
28.908906514455
1 , 3 , 9 , 397 , 1191 , 3573 , 5651 , 16953 , 50859 , 2243447 , 6730341 , 20191023
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20191022
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20191023 can be divided by 12 positive divisors.
The sum of these divisors (counting 20191023) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101000001011100101111
3
Ternary
1101222210212200
4
Quaternary
1031001130233
5
Quinary
20132103043
6
Senary
2000432543
8
Octal
115013457
10
Decimal
20191023
12
Duodecimal
6918753
16
Hexadecimal
134172f
20
Vigesimal
663hb3
36
Base36
c0rhr
md5
59a9b28c61994b16f25adf28f15789eb
sha1
706b73e4f5d89269a783a1d952ba9047a3aa0465
sha256
10ca1a5db31f34d1ed7bc9ed338e1efa2e4a6d684b075a286dfb93e8e75096c8
sha512
9cd76826d9bab943343be54e3048b6dec98195f739b84de8bbdd699b78446ec09d14dbb3e2c6e2fe4c2b21b1960294a468293d8ab6f2bbb61eddd91a9d7110cf
ripemd-160
1d8b374a8577f8d632a190ce691d4dae516bd1fc
Diameter
40382046
Circumference
126863939.05053
Area
1.2807563556199E+15
Volume
3.4479708044956E+22
Surface area
5.1230254224795E+15
Circumference
126863939.05053
Perimeter
80764092
Area
407677409786529
Diagonal
28554418.564787
Surface area
2446064458719174
Volume
8.2314239575802E+21
Space diagonal
34971877.692792
Perimeter
60573069
Area
1.7652949671209E+14
Altitude
17485938.846396
Surface area
1.7652949671209E+14
Volume
9.7008261653773E+20
Height
9518139.5215957