72131409 is an odd 8-digits composite number following 72131408
and preceding 72131410 . In scientific notation, it is written as 7.2131409 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 40916448 positive integers (up to 72131409) that are relatively prime to 72131409.
72131409 has 16 divisors, whose sum is 92265600
The reverse of 72131409 is 90413127
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
seventy-two million one hundred thirty-one thousand four hundred nine
Scientific notation
7.2131409 × 10^7
Engineering notation
7.2131409 × 10^6
Prime Factorization
9 × 7 × 139 × 8237
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
72131409
Product of the distinct prime numbers
The prime factorization of 72131409 is 9 × 7 × 139 × 8237.
Since it has a total of 4 prime factors.
7 , 3 , 79 , 94 , 470 , 509 , 2755 , 2892 , 49341 , 59386 , 600497 , 289368 , 4727039 , 5879444 , 56016494 , 24189479 , 350540594 , 205557470 , 772959050 , 8603643954
n×2
144262818
n×3
216394227
n×4
288525636
n×5
360657045
n÷2
36065704.5
n÷3
24043803
n÷3
18032852.25
n÷5
14426281.8
n2
5202940164325281
n3
3.7529540499547E+23
n4
2.7070586353549E+31
n5
1.9526395361377E+39
2 √n
8493.021193898
3 √n
416.2697049893
4 √n
92.157588911049
5 √n
37.292790645704
1 , 7 , 9 , 63 , 139 , 973 , 1251 , 8237 , 8757 , 57659 , 74133 , 518931 , 1144943 , 8014601 , 10304487 , 72131409
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72131408
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72131409 can be divided by 16 positive divisors.
The sum of these divisors (counting 72131409) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010011001010001101010001
3
Ternary
12000201122200200
4
Quaternary
10103022031101
5
Quinary
121431201114
6
Senary
11054005413
8
Octal
423121521
10
Decimal
72131409
12
Duodecimal
201a6869
16
Hexadecimal
44ca351
20
Vigesimal
12ag8a9
36
Base36
16y0y9
md5
253b22446206457a9eb5361f08589035
sha1
45c65215afe26bc6bc9a99140adac40db79284ce
sha256
8ddc19b2bc7b077258d0cbc87742f6901d583d160ec4efd4e8cc2817496eb2bc
sha512
fcbbf58fbeea488ed631824ae20df65dda11a2a84c2c4e55a09ec9d5432bb816aca14a100d8ea10391ed1f5639af771c35492702454f6fc94e11e2ba2450b36e
ripemd-160
a5762e964666a3b602f9917452452ab75c33051f
Diameter
144262818
Circumference
453215009.21496
Area
1.6345518597312E+16
Volume
1.5720337163464E+24
Surface area
6.5382074389246E+16
Circumference
453215009.21496
Perimeter
288525636
Area
5202940164325281
Diagonal
102009216.88088
Surface area
31217640985951686
Volume
3.7529540499547E+23
Space diagonal
124935265.20953
Perimeter
216394227
Area
2.252939178338E+15
Altitude
62467632.604765
Surface area
2.252939178338E+15
Volume
4.4228987636742E+22
Height
34003072.293627