72644905 is an odd 8-digits composite number following 72644904
and preceding 72644906 . In scientific notation, it is written as 7.2644905 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 57888768 positive integers (up to 72644905) that are relatively prime to 72644905.
72644905 has 8 divisors, whose sum is 87514632
The reverse of 72644905 is 50944627
Previous prime number is 257
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
seventy-two million six hundred forty-four thousand nine hundred five
Scientific notation
7.2644905 × 10^7
Engineering notation
7.2644905 × 10^6
Prime Factorization
5 × 257 × 56533
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72644905
Product of the distinct prime numbers
The prime factorization of 72644905 is 5 × 257 × 56533.
Since it has a total of 3 prime factors.
8 , 4 , 49 , 33 , 446 , 828 , 1065 , 347 , 27508 , 53880 , 730466 , 13450 , 4008213 , 2597424 , 97097184 , 20782397 , 904372947 , 886073652 , 3936130693 , 234919055
n×2
145289810
n×3
217934715
n×4
290579620
n×5
363224525
n÷2
36322452.5
n÷3
24214968.333333
n÷3
18161226.25
n÷5
14528981
n2
5277282222459025
n3
3.8336766570872E+23
n4
2.7849707655482E+31
n5
2.0231393669103E+39
2 √n
8523.1980500279
3 √n
417.25516379716
4 √n
92.321167941204
5 √n
37.345736792093
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72644904
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72644905 can be divided by 8 positive divisors.
The sum of these divisors (counting 72644905) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010101000111100100101001
3
Ternary
12001200202002001
4
Quaternary
10111013210221
5
Quinary
122044114110
6
Senary
11113011001
8
Octal
425074451
10
Decimal
72644905
12
Duodecimal
203b3a61
16
Hexadecimal
4547929
20
Vigesimal
12e0c55
36
Base36
179161
md5
5e6dfeb4eeab05f759b48319d6c6669b
sha1
5ebc67ee4cde53564f217849af670c0017936ac3
sha256
91fc8db730d0ab15c5f4bc475f544a2d9c0d3175c417df034a15102c09d47d93
sha512
9b9442ca3b80a125f5700d587c1e1af957be889ea4cc2b3c475cb0cd1736d5945bb3a92ef2f9881ac70cc223b8e579c0bd4f7f0a6da8743906b9d5a5a3825174
ripemd-160
69f40bccd91c56ee2d200eb703d7427337caf810
Diameter
145289810
Circumference
456441399.73746
Area
1.6579071060997E+16
Volume
1.6058467229525E+24
Surface area
6.6316284243989E+16
Circumference
456441399.73746
Perimeter
290579620
Area
5277282222459025
Diagonal
102735409.88831
Surface area
31663693334754150
Volume
3.8336766570872E+23
Space diagonal
125824666.37101
Perimeter
217934715
Area
2.2851302337948E+15
Altitude
62912333.185507
Surface area
2.2851302337948E+15
Volume
4.5180312685049E+22
Height
34245136.629435