72445905 is an odd 8-digits composite number following 72445904
and preceding 72445906 . In scientific notation, it is written as 7.2445905 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 32762880 positive integers (up to 72445905) that are relatively prime to 72445905.
72445905 has 16 divisors, whose sum is 81824512
The reverse of 72445905 is 50954427
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
seventy-two million four hundred forty-five thousand nine hundred five
Scientific notation
7.2445905 × 10^7
Engineering notation
7.2445905 × 10^6
Prime Factorization
15 × 21 × 97 × 2371
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
72445905
Product of the distinct prime numbers
The prime factorization of 72445905 is 15 × 21 × 97 × 2371.
Since it has a total of 4 prime factors.
7 , 8 , 84 , 100 , 294 , 466 , 4163 , 6616 , 21202 , 93035 , 627996 , 198441 , 4899021 , 3682428 , 75864979 , 11317969 , 322177201 , 697088369 , 4032530628 , 9136370031
n×2
144891810
n×3
217337715
n×4
289783620
n×5
362229525
n÷2
36222952.5
n÷3
24148635
n÷3
18111476.25
n÷5
14489181
n2
5248409151269025
n3
3.8022575077397E+23
n4
2.7545798619124E+31
n5
1.9955803099102E+39
2 √n
8511.5160224251
3 √n
416.87381237828
4 √n
92.257877833956
5 √n
37.325253708354
1 , 15 , 21 , 97 , 315 , 1455 , 2037 , 2371 , 30555 , 35565 , 49791 , 229987 , 746865 , 3449805 , 4829727 , 72445905
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
-72445904
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 72445905 can be divided by 16 positive divisors.
The sum of these divisors (counting 72445905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010100010110111111010001
3
Ternary
12001022122002200
4
Quaternary
10110112333101
5
Quinary
122021232110
6
Senary
11104433413
8
Octal
424267721
10
Decimal
72445905
12
Duodecimal
20318869
16
Hexadecimal
4516fd1
20
Vigesimal
12cfef5
36
Base36
174rm9
md5
56e60ef4b98ff5b2e68994e55eb17548
sha1
c031e2aa533d88acfe1fdeb14c9d316ad607e696
sha256
bf2fe7550ca19ad530b4cc3f3343191e0d2a9d6f40adc34bc6ffcf7946ad021b
sha512
ce4f98542c6df66e448aab1a1ab1d75992b78084e3b88cb7ff42e908557dd727646a8d6f39140b2dac1bae4939a089368664676b4bdaa69f74371d7fb28c7010
ripemd-160
d119ab83f89e5aaeb1fdbb1823f354d13786adb6
Diameter
144891810
Circumference
455191045.86133
Area
1.648836363266E+16
Volume
1.5926859004495E+24
Surface area
6.5953454530641E+16
Circumference
455191045.86133
Perimeter
289783620
Area
5248409151269025
Diagonal
102453981.38939
Surface area
31490454907614150
Volume
3.8022575077397E+23
Space diagonal
125479988.26031
Perimeter
217337715
Area
2.2726278272268E+15
Altitude
62739994.130154
Surface area
2.2726278272268E+15
Volume
4.4810034459003E+22
Height
34151327.129798