81118 is an even 5-digits composite number following 81117
and preceding 81119 . In scientific notation, it is written as 8.1118 × 10^4.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 40558 positive integers (up to 81118) that are relatively prime to 81118.
81118 has 4 divisors, whose sum is 121680
The reverse of 81118 is 81118
Previous prime number is 2
Is Prime? no
Number parity even
Number length 5
Sum of Digits 19
Digital Root 1
Name
eighty-one thousand one hundred eighteen
Scientific notation
8.1118 × 10^4
Engineering notation
8.1118 × 10^3
Prime Factorization
2 × 40559
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81118
Product of the distinct prime numbers
The prime factorization of 81118 is 2 × 40559.
Since it has a total of 2 prime factors.
4 , 8 , 35 , 86 , 682 , 221 , 5286 , 453 , 11976 , 19080 , 756068 , 939726 , 1664923 , 382350 , 43197889 , 77857334 , 576650211 , 224905600 , 6049493769 , 6541524437
n×2
162236
n×3
243354
n×4
324472
n×5
405590
n÷2
40559
n÷3
27039.333333333
n÷3
20279.5
n÷5
16223.6
n2
6580129924
n3
533766979175032
n4
4.329810981672E+19
n5
3.5122560721127E+24
2 √n
284.81221883901
3 √n
43.288487464114
4 √n
16.876380501725
5 √n
9.5901068700441
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81117
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81118 can be divided by 4 positive divisors.
The sum of these divisors (counting 81118) is 1, the average is 0.25.
Base
System
Value
2
Binary
10011110011011110
3
Ternary
11010021101
4
Quaternary
103303132
5
Quinary
10043433
6
Senary
1423314
8
Octal
236336
10
Decimal
81118
12
Duodecimal
3ab3a
16
Hexadecimal
13cde
20
Vigesimal
a2fi
36
Base36
1qla
md5
8601ef0357ce47da4387492094442f13
sha1
5816a6a890f6d7f0bf5da5545ae37346da227f21
sha256
bda6d1e912b0eda1690b1e9de9d2fad3b3f5752bc02ed494e535fbfc460cde43
sha512
f70b4b2b4e39364df578603e26d910878cee2c685d2d991bc94723c113ac4e3c63c055eba50c2e6237949becdb7a76e8574db60799eec948a3da23b4370d4b49
ripemd-160
25e246e05368127971b9e9bb430f83b2a7edd05d
Diameter
162236
Circumference
509679.42574779
Area
20672087828.905
Volume
2.2358378940068E+15
Surface area
82688351315.619
Circumference
509679.42574779
Perimeter
324472
Area
6580129924
Diagonal
114718.17575258
Surface area
39480779544
Volume
533766979175032
Space diagonal
140500.49740837
Perimeter
243354
Area
2849279837.1931
Altitude
70250.248704186
Surface area
2849279837.1931
Volume
62905041758021
Height
38239.391917527