18388812 is an even 8-digits composite number following 18388811
and preceding 18388813 . In scientific notation, it is written as 1.8388812 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 12 positive divisors.
There are 5658048 positive integers (up to 18388812) that are relatively prime to 18388812.
18388812 has 12 divisors, whose sum is 33005840
The reverse of 18388812 is 21888381
Previous prime number is 39
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighteen million three hundred eighty-eight thousand eight hundred twelve
Scientific notation
1.8388812 × 10^7
Engineering notation
1.8388812 × 10^6
Prime Factorization
2 × 2 × 39 × 117877
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9194406
Product of the distinct prime numbers
The prime factorization of 18388812 is 2 × 2 × 39 × 117877.
Since it has a total of 4 prime factors.
5 , 1 , 22 , 44 , 901 , 316 , 1496 , 4037 , 97512 , 20481 , 564893 , 486207 , 6591515 , 4133381 , 3894117 , 78543616 , 137348673 , 304344658 , 8245266764 , 3935264186
n×2
36777624
n×3
55166436
n×4
73555248
n×5
91944060
n÷2
9194406
n÷3
6129604
n÷3
4597203
n÷5
3677762.4
n2
338148406771344
n3
6.2181474802178E+21
n4
1.14344345002E+29
n5
2.1026566635049E+36
2 √n
4288.2178116322
3 √n
263.9477054362
4 √n
65.484485274241
5 √n
28.373357788555
1 , 2 , 4 , 39 , 78 , 156 , 117877 , 235754 , 471508 , 4597203 , 9194406 , 18388812
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
-18388811
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 18388812 can be divided by 12 positive divisors.
The sum of these divisors (counting 18388812) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1000110001001011101001100
3
Ternary
1021121020201010
4
Quaternary
1012021131030
5
Quinary
14201420222
6
Senary
1454045220
8
Octal
106113514
10
Decimal
18388812
12
Duodecimal
61a9810
16
Hexadecimal
118974c
20
Vigesimal
5eic0c
36
Base36
ay4wc
md5
d0f3b4de185b23a74d94e0d77f66a0fe
sha1
c716dbaca6048d33e2ffb4f75e61df40ffccdd24
sha256
ef5bdf7ab793439a8be38093b61511f2b801535cd9d0bdc595a10c2549bad7fb
sha512
cabdf18ddc214b9d4a950c07c9457758504bedef78f775d8064062830a493cf5a7a8ef0143d24b27282844a6c91d9b17a1e983bee82adae34987b98ba8b68ab2
ripemd-160
44361662752200f74f1b6063451c84d03ffe453e
Diameter
36777624
Circumference
115540313.37489
Area
1.0623245505359E+15
Volume
2.6046515257053E+22
Surface area
4.2492982021438E+15
Circumference
115540313.37489
Perimeter
73555248
Area
338148406771344
Diagonal
26005707.326329
Surface area
2028890440628064
Volume
6.2181474802178E+21
Space diagonal
31850356.674832
Perimeter
55166436
Area
1.4642255525661E+14
Altitude
15925178.337416
Surface area
1.4642255525661E+14
Volume
7.3281570828E+20
Height
8668569.1087764