18943969 is an odd 8-digits composite number following 18943968
and preceding 18943970 . In scientific notation, it is written as 1.8943969 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 16315200 positive integers (up to 18943969) that are relatively prime to 18943969.
18943969 has 4 divisors, whose sum is 19034820
The reverse of 18943969 is 96934981
Previous prime number is 209
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
eighteen million nine hundred forty-three thousand nine hundred sixty-nine
Scientific notation
1.8943969 × 10^7
Engineering notation
1.8943969 × 10^6
Prime Factorization
209 × 90641
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18943969
Product of the distinct prime numbers
The prime factorization of 18943969 is 209 × 90641.
Since it has a total of 2 prime factors.
1 , 6 , 91 , 97 , 267 , 63 , 3272 , 4065 , 31862 , 71535 , 658578 , 755895 , 8901434 , 422149 , 8249240 , 48480433 , 493794808 , 834975472 , 1778941988 , 3359493627
n×2
37887938
n×3
56831907
n×4
75775876
n×5
94719845
n÷2
9471984.5
n÷3
6314656.3333333
n÷3
4735992.25
n÷5
3788793.8
n2
358873961472961
n3
6.798497201051E+21
n4
1.287905202233E+29
n5
2.439803622604E+36
2 √n
4352.4670015981
3 √n
266.57760272214
4 √n
65.973229431324
5 √n
28.542643611498
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
-18943968
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 18943969 can be divided by 4 positive divisors.
The sum of these divisors (counting 18943969) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001000010000111111100001
3
Ternary
1022122110020111
4
Quaternary
1020100333201
5
Quinary
14322201334
6
Senary
1514011321
8
Octal
110207741
10
Decimal
18943969
12
Duodecimal
6416b41
16
Hexadecimal
1210fe1
20
Vigesimal
5i7ji9
36
Base36
ba19d
md5
5bdd70935210b1d13914388d596cc39d
sha1
f7c715f43f4fe48ffbed75411e6ebf3b26531e36
sha256
7d95e648ed9d6c341deb2b86b3ea8e73c03b856216f25421f28f696ad92d801d
sha512
4b4410961d1b2b73f8a87d3f135126014b590a9266c5e3bf6a482cb157c522e26ffc9e22fcca9675cd2f5b736f35a03de76fc6ca0cfd09887064a8eebec946e7
ripemd-160
a3028d3b7f284daf44446ef36a6b8494cc2e8579
Diameter
37887938
Circumference
119028467.68047
Area
1.1274358009281E+15
Volume
2.847747848303E+22
Surface area
4.5097432037125E+15
Circumference
119028467.68047
Perimeter
75775876
Area
358873961472961
Diagonal
26790817.884975
Surface area
2153243768837766
Volume
6.798497201051E+21
Space diagonal
32811916.80501
Perimeter
56831907
Area
1.5539698369617E+14
Altitude
16405958.402505
Surface area
1.5539698369617E+14
Volume
8.0121057879015E+20
Height
8930272.6283252