81471 (number)

81471 is an odd 5-digits composite number following 81470 and preceding 81472. In scientific notation, it is written as 8.1471 × 10^4. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 50112 positive integers (up to 81471) that are relatively prime to 81471.

Interesting facts

Basic properties

Name

Name eighty-one thousand four hundred seventy-one

Notation

Scientific notation 8.1471 × 10^4
Engineering notation 8.1471 × 10^3

Prime Factorization of 81471

Prime Factorization 3 × 13 × 2089

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81471
Product of the distinct prime numbers

The prime factorization of 81471 is 3 × 13 × 2089. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 2, 20, 4, 87, 717, 173, 7351, 57967, 52770, 817266, 559933, 4194680, 2549504, 42369862, 81068808, 447594357, 122748236, 7989553914, 7028986845

Basic calculations (n = 81471)

Multiplication

n×y
n×2 162942
n×3 244413
n×4 325884
n×5 407355

Division

n÷y
n÷2 40735.5
n÷3 27157
n÷3 20367.75
n÷5 16294.2

Exponentiation

ny
n2 6637523841
n3 540765704850111
n4 4.4056722739843E+19
n5 3.5893452583378E+24

Nth Root

y√n
2√n 285.43125266866
3√n 43.351189222506
4√n 16.894710789731
5√n 9.5984390043347

Divisors of 81471

1, 3, 13, 39, 2089, 6267, 27157, 81471

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 -81470
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 81471 can be divided by 8 positive divisors. The sum of these divisors (counting 81471) is 1, the average is 0.125.

Base conversion 81471

Base System Value
2 Binary 10011111000111111
3 Ternary 11010202110
4 Quaternary 103320333
5 Quinary 10101341
6 Senary 1425103
8 Octal 237077
10 Decimal 81471
12 Duodecimal 3b193
16 Hexadecimal 13e3f
20 Vigesimal a3db
36 Base36 1qv3

Cryptographic Hash Functions

md5 29b1b86fc7656f13a13d14ba38a29a4f
sha1 cdbb6d5ae6af7bb3848a3d45b2e2d66a11472492
sha256 5b0894a2525c89394eae12a85a65bc5c93b9757def6304811948600db5e56848
sha512 cac8e52661b9a2c1970911cbb46dc35ff88663da8ea7a74adca0fbf945c515bc8d390574cfd3272d888b25aca323271aa5b8aad23e63cd51841cc6f28dee259d
ripemd-160 b5a8362483c81f4c0385bac5128175237b32299a

81471 as geometric shapes

Circle

Radius = n
Diameter 162942
Circumference 511897.39016123
Area 20852396136.913

Sphere

Radius = n
Volume 2.2651540875606E+15
Surface area 83409584547.651
Circumference 511897.39016123

Square

Length = n
Perimeter 325884
Area 6637523841
Diagonal 115217.3931401

Cube

Length = n
Surface area 39825143046
Volume 540765704850111
Space diagonal 141111.91134344

Equilateral Triangle

Length = n
Perimeter 244413
Area 2874132132.2654
Altitude 70555.955671722

Triangular Pyramid

Length = n
Surface area 2874132132.2654
Volume 63729849488773
Height 38405.797713366