18389639 is an odd 8-digits composite number following 18389638
and preceding 18389640 . In scientific notation, it is written as 1.8389639 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 18130560 positive integers (up to 18389639) that are relatively prime to 18389639.
18389639 has 4 divisors, whose sum is 18648720
The reverse of 18389639 is 93698381
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighteen million three hundred eighty-nine thousand six hundred thirty-nine
Scientific notation
1.8389639 × 10^7
Engineering notation
1.8389639 × 10^6
Prime Factorization
71 × 259009
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18389639
Product of the distinct prime numbers
The prime factorization of 18389639 is 71 × 259009.
Since it has a total of 2 prime factors.
3 , 10 , 41 , 94 , 53 , 940 , 6627 , 4097 , 73548 , 72049 , 122350 , 57580 , 890329 , 1816736 , 7882740 , 4824256 , 586651249 , 441139277 , 1250431293 , 2755438906
n×2
36779278
n×3
55168917
n×4
73558556
n×5
91948195
n÷2
9194819.5
n÷3
6129879.6666667
n÷3
4597409.75
n÷5
3677927.8
n2
338178822550321
n3
6.2189864641455E+21
n4
1.1436491602152E+29
n5
2.1031295199011E+36
2 √n
4288.314237553
3 √n
263.95166221673
4 √n
65.485221520226
5 √n
28.373612990955
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
-18389638
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 18389639 can be divided by 4 positive divisors.
The sum of these divisors (counting 18389639) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000110001001101010000111
3
Ternary
1021121021211202
4
Quaternary
1012021222013
5
Quinary
14201432024
6
Senary
1454053115
8
Octal
106115207
10
Decimal
18389639
12
Duodecimal
61aa19b
16
Hexadecimal
1189a87
20
Vigesimal
5eie1j
36
Base36
ay5jb
md5
98405536bb55beb8bfddbd6dc39b057e
sha1
fddd717b9fb6b079f89d5005f868b6dad1cf79b9
sha256
53b189680e817ec77003fce2bc4f46ba6a13d4edaba0e172dcb2856fd9d79dd9
sha512
4bf6ac42548363bcd8135896abc86adb5f798b87f6ee0a968fe5a8d671ad48ccf9099930453cce3184b1595b21fb61469612c78331f7be8004d66fc7e9d3018e
ripemd-160
590916f4b3f924a387a25cfd1ef053adf4bf8b5b
Diameter
36779278
Circumference
115545509.56914
Area
1.0624201045237E+15
Volume
2.6050029584712E+22
Surface area
4.2496804180949E+15
Circumference
115545509.56914
Perimeter
73558556
Area
338178822550321
Diagonal
26006876.880945
Surface area
2029072935301926
Volume
6.2189864641455E+21
Space diagonal
31851789.08085
Perimeter
55168917
Area
1.4643572567524E+14
Altitude
15925894.540425
Surface area
1.4643572567524E+14
Volume
7.329145834841E+20
Height
8668958.9603151