18388213 is an odd 8-digits composite number following 18388212
and preceding 18388214 . In scientific notation, it is written as 1.8388213 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 17877600 positive integers (up to 18388213) that are relatively prime to 18388213.
18388213 has 8 divisors, whose sum is 18902016
The reverse of 18388213 is 31288381
Previous prime number is 383
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighteen million three hundred eighty-eight thousand two hundred thirteen
Scientific notation
1.8388213 × 10^7
Engineering notation
1.8388213 × 10^6
Prime Factorization
41 × 383 × 1171
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18388213
Product of the distinct prime numbers
The prime factorization of 18388213 is 41 × 383 × 1171.
Since it has a total of 3 prime factors.
6 , 6 , 32 , 88 , 62 , 798 , 4778 , 3354 , 61447 , 82994 , 298728 , 918424 , 5554813 , 5890713 , 22401936 , 46828427 , 883621559 , 226107201 , 5331090617 , 2693707333
n×2
36776426
n×3
55164639
n×4
73552852
n×5
91941065
n÷2
9194106.5
n÷3
6129404.3333333
n÷3
4597053.25
n÷5
3677642.6
n2
338126377333369
n3
6.2175398473244E+21
n4
1.1432944704859E+29
n5
2.1023142245017E+36
2 √n
4288.1479685291
3 √n
263.94483944731
4 √n
65.483951992294
5 √n
28.373172938519
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18388212
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18388213 can be divided by 8 positive divisors.
The sum of these divisors (counting 18388213) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110001001010011110101
3
Ternary
1021121012212221
4
Quaternary
1012021103311
5
Quinary
14201410323
6
Senary
1454042341
8
Octal
106112365
10
Decimal
18388213
12
Duodecimal
61a93b1
16
Hexadecimal
11894f5
20
Vigesimal
5eiaad
36
Base36
ay4fp
md5
c77eb4baec22e26067b1d0a838487b03
sha1
0a4c6a816e6fd1ba2998448685240e8fe8c10354
sha256
fbe51abd645260ba345e689477b4665f844c1bc1be36b65b623d83dc38d98ccc
sha512
b0cba80d4aa9e8ced28322fc4dd214be91dd14fb851314baf964aca7da942e764603d63925e72e220e8bb5032253b3a99fa3a03148c5a2415dd371502d15d009
ripemd-160
6916c158e0362ba6ddc3e5e4f3daf121c95e5030
Diameter
36776426
Circumference
115536549.74689
Area
1.0622553430154E+15
Volume
2.6043970010341E+22
Surface area
4.2490213720618E+15
Circumference
115536549.74689
Perimeter
73552852
Area
338126377333369
Diagonal
26004860.212405
Surface area
2028758264000214
Volume
6.2175398473244E+21
Space diagonal
31849319.176399
Perimeter
55164639
Area
1.4641301623015E+14
Altitude
15924659.588199
Surface area
1.4641301623015E+14
Volume
7.3274409805677E+20
Height
8668286.7374684