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.
81755 has 8 divisors, whose sum is 99792
The reverse of 81755 is 55718
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 26
Digital Root 8
Name
eighty-one thousand seven hundred fifty-five
Scientific notation
8.1755 × 10^4
Engineering notation
8.1755 × 10^3
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.
5 , 6 , 93 , 72 , 395 , 857 , 7246 , 8527 , 97745 , 97905 , 452525 , 548 , 6250512 , 3617777 , 98076205 , 83477219 , 356967935 , 477648412 , 9697833489 , 5817849163
n×2
163510
n×3
245265
n×4
327020
n×5
408775
n÷2
40877.5
n÷3
27251.666666667
n÷3
20438.75
n÷5
16351
n2
6683880025
n3
546440611443875
n4
4.4674252188594E+19
n5
3.6523434876785E+24
2 √n
285.92831269393
3 √n
43.401503483773
4 √n
16.909414912821
5 √n
9.6051215383397
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
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
md5
0828046d2c6e431211d7282df084535a
sha1
a0f6155c3cbd862b7a4a621366ad8be729b362ac
sha256
0cfb2ce3d98de3d36fbe17aa652a17423ae8a6e92f6768f540617327dad7fc09
sha512
943a77d7d7c8b73f72c10685e9bf99683c840fc6fb974d3ec4f8dbb2488ba3b4eff5a2c5fd49ab7e2ab03c4a2150b2ff54f02e85e70102366ad9cca778695e37
ripemd-160
a1d55fb3f76ce2bb513bb0215e48ba1908a3e841
Diameter
163510
Circumference
513681.81478847
Area
20998028384.016
Volume
2.2889250807136E+15
Surface area
83992113536.062
Circumference
513681.81478847
Perimeter
327020
Area
6683880025
Diagonal
115619.02979181
Surface area
40103280150
Volume
546440611443875
Space diagonal
141603.81377279
Perimeter
245265
Area
2894204948.7487
Altitude
70801.906886397
Surface area
2894204948.7487
Volume
64398643644615
Height
38539.676597271