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.
81738 has 24 divisors, whose sum is 187200
The reverse of 81738 is 83718
Previous prime number is 19
Is Prime? no
Number parity even
Number length 5
Sum of Digits 27
Digital Root 9
Name
eighty-one thousand seven hundred thirty-eight
Scientific notation
8.1738 × 10^4
Engineering notation
8.1738 × 10^3
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.
10 , 3 , 41 , 91 , 836 , 147 , 7631 , 10 , 57764 , 69892 , 758131 , 709351 , 6114718 , 1200263 , 4906072 , 8217799 , 150717173 , 786181701 , 2223106056 , 7864649924
n×2
163476
n×3
245214
n×4
326952
n×5
408690
n÷2
40869
n÷3
27246
n÷3
20434.5
n÷5
16347.6
n2
6681100644
n3
546099804439272
n4
4.4637105815257E+19
n5
3.6485477551275E+24
2 √n
285.89858341727
3 √n
43.398494996194
4 √n
16.9085358153
5 √n
9.6047220504813
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
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
md5
abf9ed77748555bb680de0dfd1a2ca71
sha1
a90889698bf96478b19246572e41ff3a3ba84c04
sha256
7162ae9b1e4bd7ee479441d69db1964f579e9cd2d02bad79ea46ddd56196e3d2
sha512
1b26602d6b53c6e05d02ca7e66156123bc2d26c516c04a65d80fe14b01b858adb669d296e08948296390eaa438c901afb1284ad4e7d661258b4eae390d586b80
ripemd-160
afb05fa8066c204349b9a2d4e5a6d340206c4c6d
Diameter
163476
Circumference
513575.00063825
Area
20989296701.084
Volume
2.287497511671E+15
Surface area
83957186804.338
Circumference
513575.00063825
Perimeter
326952
Area
6681100644
Diagonal
115594.98816125
Surface area
40086603864
Volume
546099804439272
Space diagonal
141574.36890906
Perimeter
245214
Area
2893001441.4723
Altitude
70787.184454532
Surface area
2893001441.4723
Volume
64358479153943
Height
38531.662720417