72180861 is an odd 8-digits composite number following 72180860
and preceding 72180862 . In scientific notation, it is written as 7.2180861 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 44324864 positive integers (up to 72180861) that are relatively prime to 72180861.
72180861 has 16 divisors, whose sum is 104073984
The reverse of 72180861 is 16808127
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
seventy-two million one hundred eighty thousand eight hundred sixty-one
Scientific notation
7.2180861 × 10^7
Engineering notation
7.2180861 × 10^6
Prime Factorization
3 × 17 × 47 × 30113
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
72180861
Product of the distinct prime numbers
The prime factorization of 72180861 is 3 × 17 × 47 × 30113.
Since it has a total of 4 prime factors.
8 , 10 , 39 , 16 , 578 , 610 , 4458 , 249 , 21591 , 20545 , 467032 , 946349 , 9490516 , 1478073 , 89859029 , 45861872 , 231826443 , 443381267 , 5433814659 , 3386213856
n×2
144361722
n×3
216542583
n×4
288723444
n×5
360904305
n÷2
36090430.5
n÷3
24060287
n÷3
18045215.25
n÷5
14436172.2
n2
5210076694701321
n3
3.7606782169958E+23
n4
2.714489916467E+31
n5
1.959342193464E+39
2 √n
8495.9320265642
3 √n
416.364812272
4 √n
92.173380249203
5 √n
37.297902697653
1 , 3 , 17 , 47 , 51 , 141 , 799 , 2397 , 30113 , 90339 , 511921 , 1415311 , 1535763 , 4245933 , 24060287 , 72180861
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
-72180860
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 72180861 can be divided by 16 positive divisors.
The sum of these divisors (counting 72180861) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010011010110010001111101
3
Ternary
12000211011112020
4
Quaternary
10103112101331
5
Quinary
121434241421
6
Senary
11055030353
8
Octal
423262175
10
Decimal
72180861
12
Duodecimal
2020b3b9
16
Hexadecimal
44d647d
20
Vigesimal
12b2c31
36
Base36
16z33x
md5
7bcc308239b23b22df53a948a5356908
sha1
52960e519a88565400354034a84b62f7c5f61c49
sha256
eb8f36115e618959e0b3ca5ae37c44445ed5d1c5c8bf4dd13e8d9fe93ed6be77
sha512
2ff3d560b5e8dcbec73fb98915dee26b5826bb6823690b5935da0c2a6a46bca5d1dfe693b3456f7041114447b9e25127244a08ab7d7467044315a4370ad25739
ripemd-160
d01b5ab2b6c4a670140153387f851a68f93d8c58
Diameter
144361722
Circumference
453525725.29477
Area
1.6367938668713E+16
Volume
1.5752692078705E+24
Surface area
6.5471754674852E+16
Circumference
453525725.29477
Perimeter
288723444
Area
5210076694701321
Diagonal
102079152.56997
Surface area
31260460168207926
Volume
3.7606782169958E+23
Space diagonal
125020918.58607
Perimeter
216542583
Area
2.2560293866383E+15
Altitude
62510459.293033
Surface area
2.2560293866383E+15
Volume
4.4320017818304E+22
Height
34026384.189989