72440 is an even 5-digits composite number following 72439
and preceding 72441 . In scientific notation, it is written as 7.2440 × 10^4.
The sum of its digits is 17. It has a total of 5 prime factors and 16 positive divisors.
There are 28960 positive integers (up to 72440) that are relatively prime to 72440.
72440 has 16 divisors, whose sum is 163080
The reverse of 72440 is 04427
Previous prime number is 5
Is Prime? no
Number parity even
Number length 5
Sum of Digits 17
Digital Root 8
Name
seventy-two thousand four hundred forty
Scientific notation
7.2440 × 10^4
Engineering notation
7.2440 × 10^3
Prime Factorization
2 × 2 × 2 × 5 × 1811
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
18110
Product of the distinct prime numbers
The prime factorization of 72440 is 2 × 2 × 2 × 5 × 1811.
Since it has a total of 5 prime factors.
7 , 5 , 53 , 32 , 331 , 828 , 6186 , 1872 , 65888 , 78763 , 534244 , 271863 , 9109041 , 7390723 , 1793319 , 68316949 , 41142963 , 970907326 , 6332463995 , 3230756481
n×2
144880
n×3
217320
n×4
289760
n×5
362200
n÷2
36220
n÷3
24146.666666667
n÷3
18110
n÷5
14488
n2
5247553600
n3
380132782784000
n4
2.7536818784873E+19
n5
1.9947671527762E+24
2 √n
269.14680009244
3 √n
41.68624857351
4 √n
16.405694136258
5 √n
9.3755269886516
1 , 2 , 4 , 5 , 8 , 10 , 20 , 40 , 1811 , 3622 , 7244 , 9055 , 14488 , 18110 , 36220 , 72440
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72439
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72440 can be divided by 16 positive divisors.
The sum of these divisors (counting 72440) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10001101011111000
3
Ternary
10200100222
4
Quaternary
101223320
5
Quinary
4304230
6
Senary
1315212
8
Octal
215370
10
Decimal
72440
12
Duodecimal
35b08
16
Hexadecimal
11af8
20
Vigesimal
9120
36
Base36
1jw8
md5
3d9db53633816612c3e6d01c0ee85f48
sha1
01f375d4df1b83cacca7f0dbe77ca9faff390390
sha256
27fb4d20adcb0ca93920406b8f415d7cc133eb9e9116d7b79d3cd235512a6cae
sha512
7db3a2a8e73329081edc0c73086b8d3d467e270eccc8feb4515785a6a3e36768390f51cc0efd927215dcea3b2be7f44f29dba26d628650271b18c8155f5043a2
ripemd-160
8e019038eaaff3ce318f2eec8229fe51995a4ed0
Diameter
144880
Circumference
455153.94365209
Area
16485675839.079
Volume
1.5922964770438E+15
Surface area
65942703356.315
Circumference
455153.94365209
Perimeter
289760
Area
5247553600
Diagonal
102445.63045831
Surface area
31485321600
Volume
380132782784000
Space diagonal
125469.76050029
Perimeter
217320
Area
2272257362.6602
Altitude
62734.880250145
Surface area
2272257362.6602
Volume
44799078076313
Height
34148.543486102