72609905 is an odd 8-digits composite number following 72609904
and preceding 72609906 . In scientific notation, it is written as 7.2609905 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 56214000 positive integers (up to 72609905) that are relatively prime to 72609905.
72609905 has 8 divisors, whose sum is 89942784
The reverse of 72609905 is 50990627
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
seventy-two million six hundred nine thousand nine hundred five
Scientific notation
7.2609905 × 10^7
Engineering notation
7.2609905 × 10^6
Prime Factorization
5 × 31 × 468451
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72609905
Product of the distinct prime numbers
The prime factorization of 72609905 is 5 × 31 × 468451.
Since it has a total of 3 prime factors.
3 , 9 , 80 , 64 , 284 , 194 , 4747 , 4684 , 39136 , 58576 , 421741 , 966267 , 268845 , 5023696 , 41669989 , 82453389 , 384899699 , 143776583 , 695533355 , 4494341112
n×2
145219810
n×3
217829715
n×4
290439620
n×5
363049525
n÷2
36304952.5
n÷3
24203301.666667
n÷3
18152476.25
n÷5
14521981
n2
5272198304109025
n3
3.8281381800252E+23
n4
2.779607495785E+31
n5
2.0182703620624E+39
2 √n
8521.1445827424
3 √n
417.18814245671
4 √n
92.310045947028
5 √n
37.342137495589
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
-72609904
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 72609905 can be divided by 8 positive divisors.
The sum of these divisors (counting 72609905) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010100111111000001110001
3
Ternary
12001121222001202
4
Quaternary
10110333001301
5
Quinary
122042004110
6
Senary
11112140545
8
Octal
424770161
10
Decimal
72609905
12
Duodecimal
20397755
16
Hexadecimal
453f071
20
Vigesimal
12dg4f5
36
Base36
178a5t
md5
d0ba0958ea1c72901cf8dd6e3fb6b50e
sha1
f9d50884d5dd365c91cfb78bcb2783ca20cf8afc
sha256
c37cf49e5f5aaf31feb48db2a463726184abdf7ee448e9245353a68acd80eed4
sha512
f6d37d3e2568646512d1542e488d817253f14028abf6225fcc5771f09a714374d705297fe365b71422e089783ddb984f08d731937d47fea8da84fbe451f1c90b
ripemd-160
8c70922bbdeb4d226c81c50eda992a3ada8c7454
Diameter
145219810
Circumference
456221488.25171
Area
1.6563099460457E+16
Volume
1.6035267711058E+24
Surface area
6.625239784183E+16
Circumference
456221488.25171
Perimeter
290439620
Area
5272198304109025
Diagonal
102685912.41362
Surface area
31633189824654150
Volume
3.8281381800252E+23
Space diagonal
125764044.59275
Perimeter
217829715
Area
2.2829288325738E+15
Altitude
62882022.296375
Surface area
2.2829288325738E+15
Volume
4.5115041106915E+22
Height
34228637.471207