18385939 is an odd 8-digits composite number following 18385938
and preceding 18385940 . In scientific notation, it is written as 1.8385939 × 10^7.
The sum of its digits is 46. It has a total of 5 prime factors and 32 positive divisors.
There are 14256000 positive integers (up to 18385939) that are relatively prime to 18385939.
18385939 has 32 divisors, whose sum is 23304960
The reverse of 18385939 is 93958381
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
eighteen million three hundred eighty-five thousand nine hundred thirty-nine
Scientific notation
1.8385939 × 10^7
Engineering notation
1.8385939 × 10^6
Prime Factorization
101 × 13 × 11 × 19 × 67
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
18385939
Product of the distinct prime numbers
The prime factorization of 18385939 is 101 × 13 × 11 × 19 × 67.
Since it has a total of 5 prime factors.
6 , 5 , 61 , 68 , 343 , 7 , 4420 , 3825 , 81263 , 36963 , 42664 , 344954 , 6120955 , 5963198 , 12751535 , 38273741 , 151223485 , 693483742 , 3935350356 , 5900625315
n×2
36771878
n×3
55157817
n×4
73543756
n×5
91929695
n÷2
9192969.5
n÷3
6128646.3333333
n÷3
4596484.75
n÷5
3677187.8
n2
338042752911721
n3
6.215233434427E+21
n4
1.1427290279613E+29
n5
2.1010146201627E+36
2 √n
4287.8828108986
3 √n
263.93395864905
4 √n
65.481927360903
5 √n
28.372471143439
1 , 11 , 13 , 19 , 67 , 101 , 143 , 209 , 247 , 737 , 871 , 1111 , 1273 , 1313 , 1919 , 2717 , 6767 , 9581 , 14003 , 14443 , 16549 , 21109 , 24947 , 74437 , 87971 , 128573 , 182039 , 274417 , 967681 , 1414303 , 1671449 , 18385939
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18385938
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18385939 can be divided by 32 positive divisors.
The sum of these divisors (counting 18385939) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1000110001000110000010011
3
Ternary
1021121002202201
4
Quaternary
1012020300103
5
Quinary
14201322224
6
Senary
1454024031
8
Octal
106106023
10
Decimal
18385939
12
Duodecimal
61a8017
16
Hexadecimal
1188c13
20
Vigesimal
5ei4gj
36
Base36
ay2oj
md5
c1f56ebe3f5c8e107a5c2b9a8d2b8ccd
sha1
ef50af42771417079177f47111524850cb270853
sha256
291441c478a8c60a7174337ddeca7e05149ece8cf83672789f217670ba2bb362
sha512
8801a4c37d2ee5f81e488fc3ba96058247f1bd6afb222ba2662f309aaae0e5deee9817cd06136787df2e954c55b9dbc95c00f77d2957b836ec186315411ebc13
ripemd-160
c71bd8f8390dc9a4fb29114f49371dc555af997b
Diameter
36771878
Circumference
115522261.7835
Area
1.0619926291467E+15
Volume
2.6034308930589E+22
Surface area
4.2479705165869E+15
Circumference
115522261.7835
Perimeter
73543756
Area
338042752911721
Diagonal
26001644.290764
Surface area
2028256517470326
Volume
6.215233434427E+21
Space diagonal
31845380.492862
Perimeter
55157817
Area
1.4637680579339E+14
Altitude
15922690.246431
Surface area
1.4637680579339E+14
Volume
7.3247228469011E+20
Height
8667214.7635881