72181875 is an odd 8-digits composite number following 72181874
and preceding 72181876 . In scientific notation, it is written as 7.2181875 × 10^7.
The sum of its digits is 39. It has a total of 5 prime factors and 32 positive divisors.
There are 38080000 positive integers (up to 72181875) that are relatively prime to 72181875.
72181875 has 32 divisors, whose sum is 97134336
The reverse of 72181875 is 57818127
Previous prime number is 281
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
seventy-two million one hundred eighty-one thousand eight hundred seventy-five
Scientific notation
7.2181875 × 10^7
Engineering notation
7.2181875 × 10^6
Prime Factorization
25 × 15 × 5 × 281 × 137
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
72181875
Product of the distinct prime numbers
The prime factorization of 72181875 is 25 × 15 × 5 × 281 × 137.
Since it has a total of 5 prime factors.
5 , 1 , 35 , 85 , 107 , 968 , 3273 , 9731 , 92172 , 12465 , 860736 , 380406 , 3593563 , 3007207 , 96480405 , 39644610 , 640791881 , 205450468 , 3326768455 , 7171692946
n×2
144363750
n×3
216545625
n×4
288727500
n×5
360909375
n÷2
36090937.5
n÷3
24060625
n÷3
18045468.75
n÷5
14436375
n2
5210223078515625
n3
3.7608367097553E+23
n4
2.7146424527897E+31
n5
1.9594798219696E+39
2 √n
8495.9917019733
3 √n
416.36676196678
4 √n
92.173703961452
5 √n
37.298007489589
1 , 5 , 15 , 25 , 75 , 125 , 137 , 281 , 375 , 685 , 1405 , 1875 , 2055 , 3425 , 4215 , 7025 , 10275 , 17125 , 21075 , 35125 , 38497 , 51375 , 105375 , 192485 , 256875 , 526875 , 577455 , 962425 , 2887275 , 4812125 , 14436375 , 72181875
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72181874
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72181875 can be divided by 32 positive divisors.
The sum of these divisors (counting 72181875) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100010011010110100001110011
3
Ternary
12000211012220210
4
Quaternary
10103112201303
5
Quinary
121434310000
6
Senary
11055035203
8
Octal
423264163
10
Decimal
72181875
12
Duodecimal
2020bb03
16
Hexadecimal
44d6873
20
Vigesimal
12b2edf
36
Base36
16z3w3
md5
77d42ba1fbfb9e1d9878274dea28b41b
sha1
919298b3e781ee291e683a2704e1ed2f6c6ad8f7
sha256
697dd6e163a3a7f1051fdb79c81af1b64a7515da3352db691d0fc2e8e2d55546
sha512
364bf50aa13f91fca031ff09e4c02e18d9145064128d4716d585fd83e99031aaddf44553e9d0306b07eed92169503adedec414895a3a2292f0e48689ebaf3231
ripemd-160
421cd2ddc438551d560ddfa90c879af06943b28a
Diameter
144363750
Circumference
453532096.44467
Area
1.6368398547029E+16
Volume
1.5753355971624E+24
Surface area
6.5473594188115E+16
Circumference
453532096.44467
Perimeter
288727500
Area
5210223078515625
Diagonal
102080586.58252
Surface area
31261338471093750
Volume
3.7608367097553E+23
Space diagonal
125022674.88559
Perimeter
216545625
Area
2.2560927726892E+15
Altitude
62511337.442793
Surface area
2.2560927726892E+15
Volume
4.4321885673388E+22
Height
34026862.194173