218878668 is an even 9-digits composite number following 218878667
and preceding 218878669 . In scientific notation, it is written as 2.18878668 × 10^8.
The sum of its digits is 54. It has a total of 4 prime factors and 12 positive divisors.
There are 72959544 positive integers (up to 218878668) that are relatively prime to 218878668.
218878668 has 12 divisors, whose sum is 425597480
The reverse of 218878668 is 866878812
Previous prime number is 9
Is Prime? no
Number parity even
Number length 9
Sum of Digits 54
Digital Root 9
Name
two hundred eighteen million eight hundred seventy-eight thousand six hundred sixty-eight
Scientific notation
2.18878668 × 10^8
Engineering notation
2.18878668 × 10^6
Prime Factorization
2 × 2 × 9 × 6079963
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
109439334
Product of the distinct prime numbers
The prime factorization of 218878668 is 2 × 2 × 9 × 6079963.
Since it has a total of 4 prime factors.
1 , 6 , 94 , 69 , 138 , 67 , 7666 , 2560 , 33061 , 52854 , 706162 , 941333 , 1635838 , 8036444 , 33921670 , 94842500 , 406225565 , 251378559 , 3363967418 , 9720649367
n×2
437757336
n×3
656636004
n×4
875514672
n×5
1094393340
n÷2
109439334
n÷3
72959556
n÷3
54719667
n÷5
43775733.6
n2
47907871305454224
n3
1.0486011058053E+25
n4
2.29516413302E+33
n5
5.0236246827678E+41
2 √n
14794.548590613
3 √n
602.65367934026
4 √n
121.63284338785
5 √n
46.562971458453
1 , 2 , 4 , 9 , 18 , 36 , 6079963 , 12159926 , 24319852 , 54719667 , 109439334 , 218878668
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
-218878667
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 218878668 can be divided by 12 positive divisors.
The sum of these divisors (counting 218878668) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1101000010111101001011001100
3
Ternary
120020212012002100
4
Quaternary
31002331023030
5
Quinary
422013104133
6
Senary
33415155100
8
Octal
1502751314
10
Decimal
218878668
12
Duodecimal
61375a90
16
Hexadecimal
d0bd2cc
20
Vigesimal
387jgd8
36
Base36
3mbbv0
md5
11868bddd3ecc55f3244d76625e0057a
sha1
9d7ad4a1af5f150792a264f510644e27b8336456
sha256
61120ed98d10c87711b86f111a8a47b6a29297851d38a11a50f8e4389cc799d3
sha512
a721d27a6696255a53933adf60dfaee92b6e0232d4ba1aec03b114b8ba7780d46704011f88d96b789ef62e5fc2cd5f7eab4e614e4a8b5f8a7a077f84b25b2ab5
ripemd-160
8d90d83a115733e998c998a492eab2ebc73d6d46
Diameter
437757336
Circumference
1375255230.8326
Area
1.5050701654234E+17
Volume
4.3923700407255E+25
Surface area
6.0202806616936E+17
Circumference
1375255230.8326
Perimeter
875514672
Area
47907871305454224
Diagonal
309541180.79976
Surface area
287447227832725344
Volume
1.0486011058053E+25
Space diagonal
379108973.669
Perimeter
656636004
Area
2.0744716795879E+16
Altitude
189554486.8345
Surface area
2.0744716795879E+16
Volume
1.2357882544578E+24
Height
103180393.59992