816189985 is an odd 9-digits composite number following 816189984
and preceding 816189986 . In scientific notation, it is written as 8.16189985 × 10^8.
The sum of its digits is 55. It has a total of 3 prime factors and 8 positive divisors.
There are 602724864 positive integers (up to 816189985) that are relatively prime to 816189985.
816189985 has 8 divisors, whose sum is 1054768680
The reverse of 816189985 is 589981618
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 55
Digital Root 1
Name
eight hundred sixteen million one hundred eighty-nine thousand nine hundred eighty-five
Scientific notation
8.16189985 × 10^8
Engineering notation
8.16189985 × 10^6
Prime Factorization
13 × 5 × 12556769
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
816189985
Product of the distinct prime numbers
The prime factorization of 816189985 is 13 × 5 × 12556769.
Since it has a total of 3 prime factors.
1 , 8 , 42 , 57 , 1000 , 410 , 5086 , 4173 , 38333 , 76331 , 196581 , 826746 , 506297 , 6217142 , 94267066 , 42127769 , 282411707 , 566824451 , 3277477582 , 3978153590
n×2
1632379970
n×3
2448569955
n×4
3264759940
n×5
4080949925
n÷2
408094992.5
n÷3
272063328.33333
n÷3
204047496.25
n÷5
163237997
n2
666166091614300225
n3
5.4371809232218E+26
n4
4.4377726161667E+35
n5
3.6220655650225E+44
2 √n
28569.038923282
3 √n
934.53826229619
4 √n
169.02378212335
5 √n
60.584043033148
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
-816189984
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 816189985 can be divided by 8 positive divisors.
The sum of these divisors (counting 816189985) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000101001100001001000100001
3
Ternary
2002212210202011201
4
Quaternary
300221201020201
5
Quinary
3132421034420
6
Senary
212553441201
8
Octal
6051411041
10
Decimal
816189985
12
Duodecimal
1a9410201
16
Hexadecimal
30a61221
20
Vigesimal
cf13ej5
36
Base36
dhxs81
md5
7b1019438c3708233ce0edbe57ee2fee
sha1
be7ab8c5f4c59c5c7f01a8c5ddb2333c144901aa
sha256
aa227a5a054b38194a7b99634829523a4a395f2ac6fd3f221614be32aeae4265
sha512
fb8ec9fbe7decfa953d0408b4e08828fb000e309b3ad72080963a96cc63781706aeddd2fa3cb8d69e771f6b1300cd4cc81dc5c4e0cd2fab37592816c6a37369d
ripemd-160
14f7880307aeec7bd8795c23cecdbb41f4b174cd
Diameter
1632379970
Circumference
5128272921.6191
Area
2.0928224994861E+18
Volume
2.2775210192843E+27
Surface area
8.3712899979444E+18
Circumference
5128272921.6191
Perimeter
3264759940
Area
666166091614300225
Diagonal
1154266946.2601
Surface area
3996996549685801350
Volume
5.4371809232218E+26
Space diagonal
1413682522.6489
Perimeter
2448569955
Area
2.8845837923889E+17
Altitude
706841261.32444
Surface area
2.8845837923889E+17
Volume
6.4077791689138E+25
Height
384755648.75336