81342616 is an even 8-digits composite number following 81342615
and preceding 81342617 . In scientific notation, it is written as 8.1342616 × 10^7.
The sum of its digits is 31. It has a total of 5 prime factors and 16 positive divisors.
There are 40360320 positive integers (up to 81342616) that are relatively prime to 81342616.
81342616 has 16 divisors, whose sum is 153683640
The reverse of 81342616 is 61624318
Previous prime number is 131
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million three hundred forty-two thousand six hundred sixteen
Scientific notation
8.1342616 × 10^7
Engineering notation
8.1342616 × 10^6
Prime Factorization
2 × 2 × 2 × 131 × 77617
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20335654
Product of the distinct prime numbers
The prime factorization of 81342616 is 2 × 2 × 2 × 131 × 77617.
Since it has a total of 5 prime factors.
5 , 6 , 68 , 15 , 747 , 361 , 9987 , 4449 , 668 , 17084 , 12931 , 872500 , 4882289 , 3976142 , 31023107 , 3730813 , 789878364 , 217076835 , 212123097 , 5722481404
n×2
162685232
n×3
244027848
n×4
325370464
n×5
406713080
n÷2
40671308
n÷3
27114205.333333
n÷3
20335654
n÷5
16268523.2
n2
6616621177723456
n3
5.3821327567703E+23
n4
4.3779675809499E+31
n5
3.5611533579765E+39
2 √n
9019.0141368112
3 √n
433.28405961762
4 √n
94.968490231293
5 √n
38.200023234483
1 , 2 , 4 , 8 , 131 , 262 , 524 , 1048 , 77617 , 155234 , 310468 , 620936 , 10167827 , 20335654 , 40671308 , 81342616
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
-81342615
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 81342616 can be divided by 16 positive divisors.
The sum of these divisors (counting 81342616) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110010011000010011000
3
Ternary
12200001122002111
4
Quaternary
10312103002120
5
Quinary
131310430431
6
Senary
12023242104
8
Octal
466230230
10
Decimal
81342616
12
Duodecimal
232a9334
16
Hexadecimal
4d93098
20
Vigesimal
1587gag
36
Base36
1cfgd4
md5
a3d7decffcea88e4210a870ef1e4e52d
sha1
8c34e816e245a2a198b18f4b4b60bda2fc3a5804
sha256
82e23fae57690b654d6d0acef2f3d5c282c219cb831e71edd53d47b17ca282d2
sha512
821645f8dec190e1fd07af08551870d6e0c7bcbda179d441d77682d9514f647a5c300c83963ef132fc5f832474e44e6b9a4b376c2323d7acc62d27a83e9c944a
ripemd-160
2e6a2c9475825021e3c49e886d2750a3cad6ef0f
Diameter
162685232
Circumference
511090729.69875
Area
2.0786728483523E+16
Volume
2.2544624972419E+24
Surface area
8.3146913934091E+16
Circumference
511090729.69875
Perimeter
325370464
Area
6616621177723456
Diagonal
115035830.74611
Surface area
39699727066340736
Volume
5.3821327567703E+23
Space diagonal
140889543.73257
Perimeter
244027848
Area
2.8650810135633E+15
Altitude
70444771.866283
Surface area
2.8650810135633E+15
Volume
6.3429042825975E+22
Height
38345276.915369