81738 (number)

81738 is an even 5-digits composite number following 81737 and preceding 81739. In scientific notation, it is written as 8.1738 × 10^4. The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors. There are 25704 positive integers (up to 81738) that are relatively prime to 81738.

Interesting facts

Basic properties

Name

Name eighty-one thousand seven hundred thirty-eight

Notation

Scientific notation 8.1738 × 10^4
Engineering notation 8.1738 × 10^3

Prime Factorization of 81738

Prime Factorization 2 × 3 × 3 × 19 × 239

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 27246
Product of the distinct prime numbers

The prime factorization of 81738 is 2 × 3 × 3 × 19 × 239. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81738)

Multiplication

n×y
n×2 163476
n×3 245214
n×4 326952
n×5 408690

Division

n÷y
n÷2 40869
n÷3 27246
n÷3 20434.5
n÷5 16347.6

Exponentiation

ny
n2 6681100644
n3 546099804439272
n4 4.4637105815257E+19
n5 3.6485477551275E+24

Nth Root

y√n
2√n 285.89858341727
3√n 43.398494996194
4√n 16.9085358153
5√n 9.6047220504813

Divisors of 81738

1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 239, 342, 478, 717, 1434, 2151, 4302, 4541, 9082, 13623, 27246, 40869, 81738

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81737
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81738 can be divided by 24 positive divisors. The sum of these divisors (counting 81738) is 1, the average is 0.041666666666667.

Base conversion 81738

Base System Value
2 Binary 10011111101001010
3 Ternary 11011010100
4 Quaternary 103331022
5 Quinary 10103423
6 Senary 1430230
8 Octal 237512
10 Decimal 81738
12 Duodecimal 3b376
16 Hexadecimal 13f4a
20 Vigesimal a46i
36 Base36 1r2i

Cryptographic Hash Functions

md5 abf9ed77748555bb680de0dfd1a2ca71
sha1 a90889698bf96478b19246572e41ff3a3ba84c04
sha256 7162ae9b1e4bd7ee479441d69db1964f579e9cd2d02bad79ea46ddd56196e3d2
sha512 1b26602d6b53c6e05d02ca7e66156123bc2d26c516c04a65d80fe14b01b858adb669d296e08948296390eaa438c901afb1284ad4e7d661258b4eae390d586b80
ripemd-160 afb05fa8066c204349b9a2d4e5a6d340206c4c6d

81738 as geometric shapes

Circle

Radius = n
Diameter 163476
Circumference 513575.00063825
Area 20989296701.084

Sphere

Radius = n
Volume 2.287497511671E+15
Surface area 83957186804.338
Circumference 513575.00063825

Square

Length = n
Perimeter 326952
Area 6681100644
Diagonal 115594.98816125

Cube

Length = n
Surface area 40086603864
Volume 546099804439272
Space diagonal 141574.36890906

Equilateral Triangle

Length = n
Perimeter 245214
Area 2893001441.4723
Altitude 70787.184454532

Triangular Pyramid

Length = n
Surface area 2893001441.4723
Volume 64358479153943
Height 38531.662720417