72081 is an odd 5-digits composite number following 72080
and preceding 72082 . In scientific notation, it is written as 7.2081 × 10^4.
The sum of its digits is 18. It has a total of 3 prime factors and 6 positive divisors.
There are 48048 positive integers (up to 72081) that are relatively prime to 72081.
72081 has 6 divisors, whose sum is 104130
The reverse of 72081 is 18027
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 18
Digital Root 9
Name
seventy-two thousand eighty-one
Scientific notation
7.2081 × 10^4
Engineering notation
7.2081 × 10^3
Prime Factorization
3 × 3 × 8009
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
24027
Product of the distinct prime numbers
The prime factorization of 72081 is 3 × 3 × 8009.
Since it has a total of 3 prime factors.
4 , 10 , 87 , 39 , 597 , 772 , 5122 , 1392 , 15315 , 80008 , 142554 , 885949 , 6338861 , 9663969 , 51264522 , 26775342 , 766917936 , 699098178 , 4470357653 , 5203533916
n×2
144162
n×3
216243
n×4
288324
n×5
360405
n÷2
36040.5
n÷3
24027
n÷3
18020.25
n÷5
14416.2
n2
5195670561
n3
374509129707441
n4
2.6994992578442E+19
n5
1.9458260600467E+24
2 √n
268.47904946196
3 √n
41.617271243129
4 √n
16.385330312873
5 √n
9.3662158173298
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72080
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72081 can be divided by 6 positive divisors.
The sum of these divisors (counting 72081) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
10001100110010001
3
Ternary
10122212200
4
Quaternary
101212101
5
Quinary
4301311
6
Senary
1313413
8
Octal
214621
10
Decimal
72081
12
Duodecimal
35869
16
Hexadecimal
11991
20
Vigesimal
9041
36
Base36
1jm9
md5
a7e8524987a816af44f00f447106f4bd
sha1
d05f58bc799571895c0c2f8219baf897be25d638
sha256
d4ea8a5a57f347e92b25ef7bb8e39811989aadd6c6ed54b76fe46a17cfa73f92
sha512
da33dcfa4772cb8ce9d3b7ee8664a95ac2b4d836f2e12a91089f8e3503c03697065997cba085d677adcbb8c604b616cf6cbc733d53cfe710389f135bda6b2438
ripemd-160
d7b5d44fcdfd762f28693901d06efd1452ea94f5
Diameter
144162
Circumference
452898.28012681
Area
16322680464.91
Volume
1.5687401741216E+15
Surface area
65290721859.641
Circumference
452898.28012681
Perimeter
288324
Area
5195670561
Diagonal
101937.92778942
Surface area
31174023366
Volume
374509129707441
Space diagonal
124847.95426037
Perimeter
216243
Area
2249791347.7605
Altitude
62423.977130186
Surface area
2249791347.7605
Volume
44136324205401
Height
33979.309263138