81470 (number)

81470 is an even 5-digits composite number following 81469 and preceding 81471. In scientific notation, it is written as 8.1470 × 10^4. The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors. There are 32584 positive integers (up to 81470) that are relatively prime to 81470.

Interesting facts

Basic properties

Name

Name eighty-one thousand four hundred seventy

Notation

Scientific notation 8.1470 × 10^4
Engineering notation 8.1470 × 10^3

Prime Factorization of 81470

Prime Factorization 2 × 5 × 8147

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81470
Product of the distinct prime numbers

The prime factorization of 81470 is 2 × 5 × 8147. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81470)

Multiplication

n×y
n×2 162940
n×3 244410
n×4 325880
n×5 407350

Division

n÷y
n÷2 40735
n÷3 27156.666666667
n÷3 20367.5
n÷5 16294

Exponentiation

ny
n2 6637360900
n3 540745792523000
n4 4.4054559716849E+19
n5 3.5891249801317E+24

Nth Root

y√n
2√n 285.42950092799
3√n 43.351011853191
4√n 16.894658946779
5√n 9.5984154413832

Divisors of 81470

1, 2, 5, 10, 8147, 16294, 40735, 81470

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 -81469
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 81470 can be divided by 8 positive divisors. The sum of these divisors (counting 81470) is 1, the average is 0.125.

Base conversion 81470

Base System Value
2 Binary 10011111000111110
3 Ternary 11010202102
4 Quaternary 103320332
5 Quinary 10101340
6 Senary 1425102
8 Octal 237076
10 Decimal 81470
12 Duodecimal 3b192
16 Hexadecimal 13e3e
20 Vigesimal a3da
36 Base36 1qv2

Cryptographic Hash Functions

md5 9517cb26244e36390b432a48d55591e1
sha1 62f901ee4998bca9b59f74b654e3b2e8ed219d7e
sha256 345a357bbe1c46fca1a790509517ec06f509010ab8fd7280dc238937651c5db2
sha512 1b3e23f0e588a8f7d6b02a1f0dc0a394ee09c23ae1c619744a9af56c850b44b60052d524b5ccb7395e077b49b59e4d4961c98cc7a5d3eaf157504043e8eb44cd
ripemd-160 a4c55f7638d9bd3ec488395bb97cb7a76cac3511

81470 as geometric shapes

Circle

Radius = n
Diameter 162940
Circumference 511891.10697592
Area 20851884242.664

Sphere

Radius = n
Volume 2.2650706789998E+15
Surface area 83407536970.657
Circumference 511891.10697592

Square

Length = n
Perimeter 325880
Area 6637360900
Diagonal 115215.97892654

Cube

Length = n
Surface area 39824165400
Volume 540745792523000
Space diagonal 141110.17929264

Equilateral Triangle

Length = n
Perimeter 244410
Area 2874061576.7428
Altitude 70555.089646318

Triangular Pyramid

Length = n
Surface area 2874061576.7428
Volume 63727502798518
Height 38405.326308845