72180865 is an odd 8-digits composite number following 72180864
and preceding 72180866 . In scientific notation, it is written as 7.2180865 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 55704960 positive integers (up to 72180865) that are relatively prime to 72180865.
72180865 has 16 divisors, whose sum is 89694720
The reverse of 72180865 is 56808127
Previous prime number is 457
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
seventy-two million one hundred eighty thousand eight hundred sixty-five
Scientific notation
7.2180865 × 10^7
Engineering notation
7.2180865 × 10^6
Prime Factorization
5 × 31 × 457 × 1019
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
72180865
Product of the distinct prime numbers
The prime factorization of 72180865 is 5 × 31 × 457 × 1019.
Since it has a total of 4 prime factors.
3 , 4 , 80 , 21 , 285 , 522 , 7274 , 4434 , 13729 , 21232 , 485158 , 862670 , 6491117 , 9540757 , 21045469 , 76831332 , 243904616 , 282862496 , 8726170926 , 5703382054
n×2
144361730
n×3
216542595
n×4
288723460
n×5
360904325
n÷2
36090432.5
n÷3
24060288.333333
n÷3
18045216.25
n÷5
14436173
n2
5210077272148225
n3
3.760678842205E+23
n4
2.7144905181755E+31
n5
1.9593427363621E+39
2 √n
8495.932261971
3 √n
416.36481996314
4 √n
92.173381526182
5 √n
37.297903111036
1 , 5 , 31 , 155 , 457 , 1019 , 2285 , 5095 , 14167 , 31589 , 70835 , 157945 , 465683 , 2328415 , 14436173 , 72180865
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
-72180864
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 72180865 can be divided by 16 positive divisors.
The sum of these divisors (counting 72180865) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010011010110010010000001
3
Ternary
12000211011112101
4
Quaternary
10103112102001
5
Quinary
121434241430
6
Senary
11055030401
8
Octal
423262201
10
Decimal
72180865
12
Duodecimal
2020b401
16
Hexadecimal
44d6481
20
Vigesimal
12b2c35
36
Base36
16z341
md5
3ccd27b545f16e00a8526ed1aa05ab6b
sha1
d1b02b1e78789399cbcbd0068293fe14a42866f2
sha256
55696bbbac88b641cf22f307976042889423ee79a44a57050570a8912b47806a
sha512
bb79ed968fa63b72fa3559332b0efefa17bfdfcd920a768fc59ffb19a6f3d79d2240a49ad4c8ea6270183dfc299c68775111888ff35b7e80dce920905ea8033c
ripemd-160
0fe8faaa8a4c01efede42d2588319ea938641051
Diameter
144361730
Circumference
453525750.42751
Area
1.6367940482816E+16
Volume
1.5752694697576E+24
Surface area
6.5471761931264E+16
Circumference
453525750.42751
Perimeter
288723460
Area
5210077272148225
Diagonal
102079158.22682
Surface area
31260463632889350
Volume
3.760678842205E+23
Space diagonal
125020925.51427
Perimeter
216542595
Area
2.2560296366801E+15
Altitude
62510462.757135
Surface area
2.2560296366801E+15
Volume
4.4320025186465E+22
Height
34026386.075607