72191009 is an odd 8-digits composite number following 72191008
and preceding 72191010 . In scientific notation, it is written as 7.2191009 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 65455600 positive integers (up to 72191009) that are relatively prime to 72191009.
72191009 has 8 divisors, whose sum is 78960960
The reverse of 72191009 is 90019127
Previous prime number is 389
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
seventy-two million one hundred ninety-one thousand nine
Scientific notation
7.2191009 × 10^7
Engineering notation
7.2191009 × 10^6
Prime Factorization
11 × 389 × 16871
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72191009
Product of the distinct prime numbers
The prime factorization of 72191009 is 11 × 389 × 16871.
Since it has a total of 3 prime factors.
9 , 1 , 28 , 42 , 292 , 323 , 1479 , 2948 , 88312 , 28860 , 248501 , 479333 , 5930400 , 751684 , 88007245 , 27732137 , 815108024 , 563356114 , 6937126376 , 2362415931
n×2
144382018
n×3
216573027
n×4
288764036
n×5
360955045
n÷2
36095504.5
n÷3
24063669.666667
n÷3
18047752.25
n÷5
14438201.8
n2
5211541780438081
n3
3.7622645957548E+23
n4
2.7160167729252E+31
n5
1.9607199129839E+39
2 √n
8496.5292325749
3 √n
416.38432377898
4 √n
92.176619771908
5 √n
37.298951390694
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
-72191008
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 72191009 can be divided by 8 positive divisors.
The sum of these divisors (counting 72191009) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010011011000110000100001
3
Ternary
12000211200110002
4
Quaternary
10103120300201
5
Quinary
121440103014
6
Senary
11055145345
8
Octal
423306041
10
Decimal
72191009
12
Duodecimal
20215255
16
Hexadecimal
44d8c21
20
Vigesimal
12b3ha9
36
Base36
16zaxt
md5
7baf40131d556163c4618f9b22521559
sha1
a3bd099caff19a88ba5b7806cede93aed2d0e257
sha256
0554765beba61711738cff3507c6b442e69df72552b6ed80725a899d1312b00b
sha512
8b708c2eaacd678e42b9e26ea6defd74dc5a980c218960a112ef8a019138c98aa8137b607efb836db5a01356ef0ae21915d8cb14d1e1d0b9245035c5b31b53df
ripemd-160
b1d76d9938df42b0978b3f2964ef308cd9eba615
Diameter
144382018
Circumference
453589487.05927
Area
1.6372541371301E+16
Volume
1.5759337086512E+24
Surface area
6.5490165485202E+16
Circumference
453589487.05927
Perimeter
288764036
Area
5211541780438081
Diagonal
102093504.0092
Surface area
31269250682628486
Volume
3.7622645957548E+23
Space diagonal
125038495.43766
Perimeter
216573027
Area
2.2566637873717E+15
Altitude
62519247.718831
Surface area
2.2566637873717E+15
Volume
4.4338713471272E+22
Height
34031168.003066