81344265 is an odd 8-digits composite number following 81344264
and preceding 81344266 . In scientific notation, it is written as 8.1344265 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 42788736 positive integers (up to 81344265) that are relatively prime to 81344265.
81344265 has 16 divisors, whose sum is 131935488
The reverse of 81344265 is 56244318
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million three hundred forty-four thousand two hundred sixty-five
Scientific notation
8.1344265 × 10^7
Engineering notation
8.1344265 × 10^6
Prime Factorization
3 × 5 × 73 × 74287
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81344265
Product of the distinct prime numbers
The prime factorization of 81344265 is 3 × 5 × 73 × 74287.
Since it has a total of 4 prime factors.
6 , 4 , 13 , 67 , 379 , 900 , 530 , 7388 , 69656 , 97303 , 294815 , 869253 , 4909929 , 9859806 , 76232494 , 31447462 , 256576864 , 585918485 , 2232994427 , 5965183506
n×2
162688530
n×3
244032795
n×4
325377060
n×5
406721325
n÷2
40672132.5
n÷3
27114755
n÷3
20336066.25
n÷5
16268853
n2
6616889448390225
n3
5.3824600876556E+23
n4
4.3783225972218E+31
n5
3.561514336039E+39
2 √n
9019.1055543219
3 √n
433.28698748258
4 √n
94.968971534506
5 √n
38.200178113514
1 , 3 , 5 , 15 , 73 , 219 , 365 , 1095 , 74287 , 222861 , 371435 , 1114305 , 5422951 , 16268853 , 27114755 , 81344265
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
-81344264
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 81344265 can be divided by 16 positive divisors.
The sum of these divisors (counting 81344265) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110010011011100001001
3
Ternary
12200001201100120
4
Quaternary
10312103130021
5
Quinary
131311004030
6
Senary
12023253453
8
Octal
466233411
10
Decimal
81344265
12
Duodecimal
232aa289
16
Hexadecimal
4d93709
20
Vigesimal
15880d5
36
Base36
1cfhmx
md5
e52ab4670374fe2785303a14697951a3
sha1
caa8bff62766fa7ee1b1858ddca7c81e583eae41
sha256
848f29bcdeaf8cb80595904fc39bd7e4fe02b4d3314f6f15f72f5fbfbf13f98e
sha512
eedd5f7a3f44d72df4e47118f27eb57e11fc36b654e4224ad8941f271379376d9ad7c540e2eef3ffef528db1b1948df7535f8dddb8a6bd0aea781f35d51c569f
ripemd-160
1b6245dea762900bfc9203e25b2727f0cb272f6a
Diameter
162688530
Circumference
511101090.67132
Area
2.0787571280679E+16
Volume
2.2545996092825E+24
Surface area
8.3150285122714E+16
Circumference
511101090.67132
Perimeter
325377060
Area
6616889448390225
Diagonal
115038162.78427
Surface area
39701336690341350
Volume
5.3824600876556E+23
Space diagonal
140892399.88435
Perimeter
244032795
Area
2.8651971781696E+15
Altitude
70446199.942173
Surface area
2.8651971781696E+15
Volume
6.3432900457453E+22
Height
38346054.261424