81755 (number)

81755 is an odd 5-digits composite number following 81754 and preceding 81756. In scientific notation, it is written as 8.1755 × 10^4. The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors. There are 64288 positive integers (up to 81755) that are relatively prime to 81755.

Interesting facts

Basic properties

Name

Name eighty-one thousand seven hundred fifty-five

Notation

Scientific notation 8.1755 × 10^4
Engineering notation 8.1755 × 10^3

Prime Factorization of 81755

Prime Factorization 5 × 197 × 83

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81755
Product of the distinct prime numbers

The prime factorization of 81755 is 5 × 197 × 83. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81755)

Multiplication

n×y
n×2 163510
n×3 245265
n×4 327020
n×5 408775

Division

n÷y
n÷2 40877.5
n÷3 27251.666666667
n÷3 20438.75
n÷5 16351

Exponentiation

ny
n2 6683880025
n3 546440611443875
n4 4.4674252188594E+19
n5 3.6523434876785E+24

Nth Root

y√n
2√n 285.92831269393
3√n 43.401503483773
4√n 16.909414912821
5√n 9.6051215383397

Divisors of 81755

1, 5, 83, 197, 415, 985, 16351, 81755

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 -81754
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 81755 can be divided by 8 positive divisors. The sum of these divisors (counting 81755) is 1, the average is 0.125.

Base conversion 81755

Base System Value
2 Binary 10011111101011011
3 Ternary 11011010222
4 Quaternary 103331123
5 Quinary 10104010
6 Senary 1430255
8 Octal 237533
10 Decimal 81755
12 Duodecimal 3b38b
16 Hexadecimal 13f5b
20 Vigesimal a47f
36 Base36 1r2z

Cryptographic Hash Functions

md5 0828046d2c6e431211d7282df084535a
sha1 a0f6155c3cbd862b7a4a621366ad8be729b362ac
sha256 0cfb2ce3d98de3d36fbe17aa652a17423ae8a6e92f6768f540617327dad7fc09
sha512 943a77d7d7c8b73f72c10685e9bf99683c840fc6fb974d3ec4f8dbb2488ba3b4eff5a2c5fd49ab7e2ab03c4a2150b2ff54f02e85e70102366ad9cca778695e37
ripemd-160 a1d55fb3f76ce2bb513bb0215e48ba1908a3e841

81755 as geometric shapes

Circle

Radius = n
Diameter 163510
Circumference 513681.81478847
Area 20998028384.016

Sphere

Radius = n
Volume 2.2889250807136E+15
Surface area 83992113536.062
Circumference 513681.81478847

Square

Length = n
Perimeter 327020
Area 6683880025
Diagonal 115619.02979181

Cube

Length = n
Surface area 40103280150
Volume 546440611443875
Space diagonal 141603.81377279

Equilateral Triangle

Length = n
Perimeter 245265
Area 2894204948.7487
Altitude 70801.906886397

Triangular Pyramid

Length = n
Surface area 2894204948.7487
Volume 64398643644615
Height 38539.676597271