72781569 is an odd 8-digits composite number following 72781568
and preceding 72781570 . In scientific notation, it is written as 7.2781569 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 41589432 positive integers (up to 72781569) that are relatively prime to 72781569.
72781569 has 8 divisors, whose sum is 101663232
The reverse of 72781569 is 96518727
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
seventy-two million seven hundred eighty-one thousand five hundred sixty-nine
Scientific notation
7.2781569 × 10^7
Engineering notation
7.2781569 × 10^6
Prime Factorization
21 × 3 × 1155263
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72781569
Product of the distinct prime numbers
The prime factorization of 72781569 is 21 × 3 × 1155263.
Since it has a total of 3 prime factors.
5 , 8 , 30 , 23 , 824 , 373 , 6867 , 3698 , 28939 , 89908 , 929423 , 74284 , 3389431 , 7886133 , 16066772 , 17955358 , 106178606 , 743125786 , 9868665743 , 3506362389
n×2
145563138
n×3
218344707
n×4
291126276
n×5
363907845
n÷2
36390784.5
n÷3
24260523
n÷3
18195392.25
n÷5
14556313.8
n2
5297156786101761
n3
3.8553538213148E+23
n4
2.8059870016544E+31
n5
2.0422413657401E+39
2 √n
8531.2114614514
3 √n
417.51665512579
4 √n
92.364557387839
5 √n
37.359777643155
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
-72781568
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 72781569 can be divided by 8 positive divisors.
The sum of these divisors (counting 72781569) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010101101000111100000001
3
Ternary
12001221200112200
4
Quaternary
10111220330001
5
Quinary
122113002234
6
Senary
11115543413
8
Octal
425507401
10
Decimal
72781569
12
Duodecimal
2045ab69
16
Hexadecimal
4568f01
20
Vigesimal
12ehdi9
36
Base36
17bym9
md5
45d5c9cc7a1be29ce78a97cc9c6c3984
sha1
e6d158f61b41c36506b6daab09bc1994fcbbde76
sha256
099b6ad55f2f7bd113de8d5d196bdfe9a1cc25b22adad4cc4d76781f81e28eff
sha512
5e5ca266dba7f60c24ca2b12f65d67c8e16a711f6b6b0fe0c9a8187bddd413e4a79390555e71a3f347fc6de794dafb1cb9c431addc2367d7900daab49e47ece2
ripemd-160
81e83eda8b5d7546a28c586af1068c7963443abc
Diameter
145563138
Circumference
457300084.97428
Area
1.6641508844131E+16
Volume
1.6149268322709E+24
Surface area
6.6566035376522E+16
Circumference
457300084.97428
Perimeter
291126276
Area
5297156786101761
Diagonal
102928681.97059
Surface area
31782940716610566
Volume
3.8553538213148E+23
Space diagonal
126061375.36258
Perimeter
218344707
Area
2.2937361722966E+15
Altitude
63030687.68129
Surface area
2.2937361722966E+15
Volume
4.543578051542E+22
Height
34309560.656864