81344 is an even 5-digits composite number following 81343
and preceding 81345 . In scientific notation, it is written as 8.1344 × 10^4.
The sum of its digits is 20. It has a total of 8 prime factors and 28 positive divisors.
There are 38400 positive integers (up to 81344) that are relatively prime to 81344.
81344 has 28 divisors, whose sum is 170688
The reverse of 81344 is 44318
Previous prime number is 41
Is Prime? no
Number parity even
Number length 5
Sum of Digits 20
Digital Root 2
Name
eighty-one thousand three hundred forty-four
Scientific notation
8.1344 × 10^4
Engineering notation
8.1344 × 10^3
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 41 × 31
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
8
Total number of prime factors
rad
Radical
2542
Product of the distinct prime numbers
The prime factorization of 81344 is 2 × 2 × 2 × 2 × 2 × 2 × 41 × 31.
Since it has a total of 8 prime factors.
10 , 6 , 3 , 40 , 434 , 744 , 1496 , 7812 , 10469 , 55705 , 198121 , 416453 , 4678848 , 6172910 , 80866464 , 19401827 , 671369018 , 64465921 , 4387185066 , 7141213948
n×2
162688
n×3
244032
n×4
325376
n×5
406720
n÷2
40672
n÷3
27114.666666667
n÷3
20336
n÷5
16268.8
n2
6616846336
n3
538240748355584
n4
4.3782655434237E+19
n5
3.5614563236425E+24
2 √n
285.20869551961
3 √n
43.328651696723
4 √n
16.888122912853
5 √n
9.5954446565172
1 , 2 , 4 , 8 , 16 , 31 , 32 , 41 , 62 , 64 , 82 , 124 , 164 , 248 , 328 , 496 , 656 , 992 , 1271 , 1312 , 1984 , 2542 , 2624 , 5084 , 10168 , 20336 , 40672 , 81344
28 divisors
τ
Total Divisors
28
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81343
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.035714285714286
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
28
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81344 can be divided by 28 positive divisors.
The sum of these divisors (counting 81344) is 1, the average is 0.035714285714286.
Base
System
Value
2
Binary
10011110111000000
3
Ternary
11010120202
4
Quaternary
103313000
5
Quinary
10100334
6
Senary
1424332
8
Octal
236700
10
Decimal
81344
12
Duodecimal
3b0a8
16
Hexadecimal
13dc0
20
Vigesimal
a374
36
Base36
1qrk
md5
2f886ce468cb42271d41a90b6473cc18
sha1
bcaf2ab7df4dd073390edc5be690abdc04e9b4a7
sha256
8e5c088a436a6dc1cece7963c9e96b3f1898cb4f4fd874490c117fcce5a6ba66
sha512
3362ca73b364cb34da2b8dabbc2e511ffbb9794a7d74a19ad9318231c4686f6689eddb1317119946ee300f9454ab7dfc5a9331697d4a4d6b71768eeb68ed26d2
ripemd-160
0cb936b5da112647362b172e274fb91069da43ea
Diameter
162688
Circumference
511099.42562722
Area
20787435839.11
Volume
2.2545775745288E+15
Surface area
83149743356.441
Circumference
511099.42562722
Perimeter
325376
Area
6616846336
Diagonal
115037.78801768
Surface area
39701078016
Volume
538240748355584
Space diagonal
140891.94089088
Perimeter
244032
Area
2865178509.957
Altitude
70445.970445441
Surface area
2865178509.957
Volume
63432280512193
Height
38345.929339226