72181008 is an even 8-digits composite number following 72181007
and preceding 72181009 . In scientific notation, it is written as 7.2181008 × 10^7.
The sum of its digits is 27. It has a total of 6 prime factors and 20 positive divisors.
There are 24060288 positive integers (up to 72181008) that are relatively prime to 72181008.
72181008 has 20 divisors, whose sum is 155389980
The reverse of 72181008 is 80018127
Previous prime number is 9
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
seventy-two million one hundred eighty-one thousand eight
Scientific notation
7.2181008 × 10^7
Engineering notation
7.2181008 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 9 × 501257
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
9022626
Product of the distinct prime numbers
The prime factorization of 72181008 is 2 × 2 × 2 × 2 × 9 × 501257.
Since it has a total of 6 prime factors.
3 , 3 , 8 , 28 , 870 , 441 , 8731 , 2849 , 90712 , 88788 , 101379 , 539632 , 6749075 , 6940434 , 5876927 , 86681002 , 366780493 , 182227841 , 4152437928 , 4092372987
n×2
144362016
n×3
216543024
n×4
288724032
n×5
360905040
n÷2
36090504
n÷3
24060336
n÷3
18045252
n÷5
14436201.6
n2
5210097915896064
n3
3.7607011934808E+23
n4
2.7145120293225E+31
n5
1.9593621450462E+39
2 √n
8495.940677759
3 √n
416.36509492119
4 √n
92.173427178114
5 √n
37.297917889457
1 , 2 , 4 , 8 , 9 , 16 , 18 , 36 , 72 , 144 , 501257 , 1002514 , 2005028 , 4010056 , 4511313 , 8020112 , 9022626 , 18045252 , 36090504 , 72181008
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72181007
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72181008 can be divided by 20 positive divisors.
The sum of these divisors (counting 72181008) is 1, the average is 0.05.
Base
System
Value
2
Binary
100010011010110010100010000
3
Ternary
12000211011201200
4
Quaternary
10103112110100
5
Quinary
121434243013
6
Senary
11055031200
8
Octal
423262420
10
Decimal
72181008
12
Duodecimal
2020b500
16
Hexadecimal
44d6510
20
Vigesimal
12b2ca8
36
Base36
16z380
md5
3f74233c0b4d1bb2469a51698f1f7f92
sha1
b455c30b2c047f244590858e04aa71f34e4adb9b
sha256
1c0880d80a537e4f3f0fd78acc07511073834a41b3485aca20d3f2604ec36c1c
sha512
06baffc7003d27666c375914274a19a18e1f4c28188be103d8a9ceeb539a29762ccaa122f5503f5753726ea92ace684e2550b2220b7421d571c963c977978582
ripemd-160
5fe5712e99aa6cc954e0de0ea7e0d69cdd6fe943
Diameter
144362016
Circumference
453526648.92301
Area
1.6368005337063E+16
Volume
1.5752788322381E+24
Surface area
6.547202134825E+16
Circumference
453526648.92301
Perimeter
288724032
Area
5210097915896064
Diagonal
102079360.45936
Surface area
31260587495376384
Volume
3.7607011934808E+23
Space diagonal
125021173.19754
Perimeter
216543024
Area
2.2560385756852E+15
Altitude
62510586.598768
Surface area
2.2560385756852E+15
Volume
4.4320288598777E+22
Height
34026453.486454