18389640 is an even 8-digits composite number following 18389639
and preceding 18389641 . In scientific notation, it is written as 1.8389640 × 10^7.
The sum of its digits is 39. It has a total of 5 prime factors and 16 positive divisors.
There are 4903872 positive integers (up to 18389640) that are relatively prime to 18389640.
18389640 has 16 divisors, whose sum is 36779520
The reverse of 18389640 is 04698381
Previous prime number is 15
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighteen million three hundred eighty-nine thousand six hundred forty
Scientific notation
1.8389640 × 10^7
Engineering notation
1.8389640 × 10^6
Prime Factorization
2 × 2 × 2 × 15 × 153247
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
4597410
Product of the distinct prime numbers
The prime factorization of 18389640 is 2 × 2 × 2 × 15 × 153247.
Since it has a total of 5 prime factors.
6 , 8 , 27 , 24 , 622 , 27 , 2141 , 6399 , 12460 , 16158 , 609067 , 189427 , 7882588 , 8336157 , 54338624 , 82535489 , 311953756 , 872102351 , 1204938416 , 7579231983
n×2
36779280
n×3
55168920
n×4
73558560
n×5
91948200
n÷2
9194820
n÷3
6129880
n÷3
4597410
n÷5
3677928
n2
338178859329600
n3
6.218987478682E+21
n4
1.1436494089747E+29
n5
2.1031300917257E+36
2 √n
4288.314354149
3 √n
263.95166700116
4 √n
65.485222410472
5 √n
28.373613299538
1 , 2 , 4 , 8 , 15 , 30 , 60 , 120 , 153247 , 306494 , 612988 , 1225976 , 2298705 , 4597410 , 9194820 , 18389640
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18389639
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18389640 can be divided by 16 positive divisors.
The sum of these divisors (counting 18389640) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000110001001101010001000
3
Ternary
1021121021211210
4
Quaternary
1012021222020
5
Quinary
14201432030
6
Senary
1454053120
8
Octal
106115210
10
Decimal
18389640
12
Duodecimal
61aa1a0
16
Hexadecimal
1189a88
20
Vigesimal
5eie20
36
Base36
ay5jc
md5
0e9672f15a20da44237a4e45e3f0a162
sha1
e18e1b9070b80c03edb7b72e49ed7e8761b99347
sha256
42be48d8c4c575807a0adb671bcc3c11d93667d2fcda8986fab76db3c78762ce
sha512
4c70319341664e8ce4422e529eac5b40fe7ca005b9f8ee46f431c50001b4fc571ed8e45e4fc4a5a0986f7989a952d42446094356cd38f9ae35a8608c58321447
ripemd-160
33fe9d40322dd8e6ad44b063bf0f6078b6cf0fe2
Diameter
36779280
Circumference
115545515.85232
Area
1.0624202200692E+15
Volume
2.6050033834392E+22
Surface area
4.249680880277E+15
Circumference
115545515.85232
Perimeter
73558560
Area
338178859329600
Diagonal
26006878.295159
Surface area
2029073155977600
Volume
6.218987478682E+21
Space diagonal
31851790.812901
Perimeter
55168920
Area
1.4643574160114E+14
Altitude
15925895.40645
Surface area
1.4643574160114E+14
Volume
7.3291470304838E+20
Height
8668959.4317196