81344 (number)

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.

Interesting facts

Basic properties

Name

Name eighty-one thousand three hundred forty-four

Notation

Scientific notation 8.1344 × 10^4
Engineering notation 8.1344 × 10^3

Prime Factorization of 81344

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.

Most popular turbo-numbers

Basic calculations (n = 81344)

Multiplication

n×y
n×2 162688
n×3 244032
n×4 325376
n×5 406720

Division

n÷y
n÷2 40672
n÷3 27114.666666667
n÷3 20336
n÷5 16268.8

Exponentiation

ny
n2 6616846336
n3 538240748355584
n4 4.3782655434237E+19
n5 3.5614563236425E+24

Nth Root

y√n
2√n 285.20869551961
3√n 43.328651696723
4√n 16.888122912853
5√n 9.5954446565172

Divisors of 81344

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 conversion 81344

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

Cryptographic Hash Functions

md5 2f886ce468cb42271d41a90b6473cc18
sha1 bcaf2ab7df4dd073390edc5be690abdc04e9b4a7
sha256 8e5c088a436a6dc1cece7963c9e96b3f1898cb4f4fd874490c117fcce5a6ba66
sha512 3362ca73b364cb34da2b8dabbc2e511ffbb9794a7d74a19ad9318231c4686f6689eddb1317119946ee300f9454ab7dfc5a9331697d4a4d6b71768eeb68ed26d2
ripemd-160 0cb936b5da112647362b172e274fb91069da43ea

81344 as geometric shapes

Circle

Radius = n
Diameter 162688
Circumference 511099.42562722
Area 20787435839.11

Sphere

Radius = n
Volume 2.2545775745288E+15
Surface area 83149743356.441
Circumference 511099.42562722

Square

Length = n
Perimeter 325376
Area 6616846336
Diagonal 115037.78801768

Cube

Length = n
Surface area 39701078016
Volume 538240748355584
Space diagonal 140891.94089088

Equilateral Triangle

Length = n
Perimeter 244032
Area 2865178509.957
Altitude 70445.970445441

Triangular Pyramid

Length = n
Surface area 2865178509.957
Volume 63432280512193
Height 38345.929339226