72405 is an odd 5-digits composite number following 72404
and preceding 72406 . In scientific notation, it is written as 7.2405 × 10^4.
The sum of its digits is 18. It has a total of 4 prime factors and 12 positive divisors.
There are 38592 positive integers (up to 72405) that are relatively prime to 72405.
72405 has 12 divisors, whose sum is 125580
The reverse of 72405 is 50427
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 four hundred five
Scientific notation
7.2405 × 10^4
Engineering notation
7.2405 × 10^3
Prime Factorization
3 × 5 × 3 × 1609
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
24135
Product of the distinct prime numbers
The prime factorization of 72405 is 3 × 5 × 3 × 1609.
Since it has a total of 4 prime factors.
7 , 1 , 58 , 29 , 413 , 460 , 889 , 3147 , 98248 , 5649 , 628558 , 866475 , 3465812 , 1751568 , 91367762 , 83619154 , 127107828 , 569034358 , 2366819896 , 5224906014
n×2
144810
n×3
217215
n×4
289620
n×5
362025
n÷2
36202.5
n÷3
24135
n÷3
18101.25
n÷5
14481
n2
5242484025
n3
379582055830125
n4
2.748363875238E+19
n5
1.9899528638661E+24
2 √n
269.08177195789
3 √n
41.679533803851
4 √n
16.403712139571
5 √n
9.3746208404431
1 , 3 , 5 , 9 , 15 , 45 , 1609 , 4827 , 8045 , 14481 , 24135 , 72405
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72404
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72405 can be divided by 12 positive divisors.
The sum of these divisors (counting 72405) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
10001101011010101
3
Ternary
10200022200
4
Quaternary
101223111
5
Quinary
4304110
6
Senary
1315113
8
Octal
215325
10
Decimal
72405
12
Duodecimal
35a99
16
Hexadecimal
11ad5
20
Vigesimal
9105
36
Base36
1jv9
md5
9d4527fca2ee1717352c7dfd339a86a8
sha1
453099b07ae9a3c33160a505dfd1c228fb4b86e3
sha256
aa35fceff4cdf21755268439a11bc37e5c9a3bc6f26125960417fb2b1708a19c
sha512
b96d3dcef4b56757d84f0ad37c04cf850b045318da1ed66b5d63769e7e1f023b6cae2cf3ecae8332aa486f498859992bd2b64ffc023d41295b9e36e55ba8ad6b
ripemd-160
8f27b85eede66a9efe7e4dfc1060346ab84ffa47
Diameter
144810
Circumference
454934.03216634
Area
16469749299.502
Volume
1.5899895973739E+15
Surface area
65878997198.007
Circumference
454934.03216634
Perimeter
289620
Area
5242484025
Diagonal
102396.13298362
Surface area
31454904150
Volume
379582055830125
Space diagonal
125409.13872202
Perimeter
217215
Area
2270062172.292
Altitude
62704.569361012
Surface area
2270062172.292
Volume
44734174282369
Height
34132.044327875