72861009 is an odd 8-digits composite number following 72861008
and preceding 72861010 . In scientific notation, it is written as 7.2861009 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 44837520 positive integers (up to 72861009) that are relatively prime to 72861009.
72861009 has 4 divisors, whose sum is 74729280
The reverse of 72861009 is 90016827
Previous prime number is 39
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
seventy-two million eight hundred sixty-one thousand nine
Scientific notation
7.2861009 × 10^7
Engineering notation
7.2861009 × 10^6
Prime Factorization
39 × 1868231
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72861009
Product of the distinct prime numbers
The prime factorization of 72861009 is 39 × 1868231.
Since it has a total of 2 prime factors.
8 , 8 , 74 , 91 , 103 , 985 , 847 , 3395 , 130 , 36108 , 136558 , 442403 , 7518183 , 7096174 , 21543748 , 91092727 , 766083212 , 757482114 , 2897977360 , 2928320802
n×2
145722018
n×3
218583027
n×4
291444036
n×5
364305045
n÷2
36430504.5
n÷3
24287003
n÷3
18215252.25
n÷5
14572201.8
n2
5308726632498081
n3
3.8679917894898E+23
n4
2.8182578458594E+31
n5
2.0534111027149E+39
2 √n
8535.8660369057
3 √n
417.66850429844
4 √n
92.389750713516
5 √n
37.367929613151
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72861008
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72861009 can be divided by 4 positive divisors.
The sum of these divisors (counting 72861009) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010101111100010101010001
3
Ternary
12002002201111220
4
Quaternary
10111330111101
5
Quinary
122123023014
6
Senary
11121355253
8
Octal
425742521
10
Decimal
72861009
12
Duodecimal
20498b29
16
Hexadecimal
457c551
20
Vigesimal
12f7ca9
36
Base36
17dnwx
md5
4f1e82e62a3770e9710085c483d3a81c
sha1
8d6b80eeb0aeb329d2d2190310047c3079fc56d7
sha256
c3731dcb7f36801d3252a78568d56c825288a5ac83524800f0203d0c4c4e2666
sha512
25e92c2700c32d28bed71226f5400e1978e9ac0e27d1ed1ab0686cc2b4fa15880b006459194c9ec4262b4f93b48332c414016a79645b1eb90b0985c1a89b03d3
ripemd-160
417500a5723e067e027dcaf1c88b798b71eb29f4
Diameter
145722018
Circumference
457799221.21508
Area
1.6677856588572E+16
Volume
1.6202206120009E+24
Surface area
6.671142635429E+16
Circumference
457799221.21508
Perimeter
291444036
Area
5308726632498081
Diagonal
103041027.09599
Surface area
31852359794988486
Volume
3.8679917894898E+23
Space diagonal
126198969.47873
Perimeter
218583027
Area
2.2987460627452E+15
Altitude
63099484.739367
Surface area
2.2987460627452E+15
Volume
4.5584720398702E+22
Height
34347009.031996