72181768 is an even 8-digits composite number following 72181767
and preceding 72181769 . In scientific notation, it is written as 7.2181768 × 10^7.
The sum of its digits is 40. It has a total of 5 prime factors and 16 positive divisors.
There are 35959488 positive integers (up to 72181768) that are relatively prime to 72181768.
72181768 has 16 divisors, whose sum is 135833580
The reverse of 72181768 is 86718127
Previous prime number is 277
Is Prime? no Number parity even Number length 8 Sum of Digits 40 Digital Root 4
Name
seventy-two million one hundred eighty-one thousand seven hundred sixty-eight
Scientific notation
7.2181768 × 10^7
Engineering notation
7.2181768 × 10^6
Prime Factorization
2 × 2 × 2 × 277 × 32573
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
18045442 Product of the distinct prime numbers
The prime factorization of 72181768 is 2 × 2 × 2 × 277 × 32573.
Since it has a total of 5 prime factors.
8 , 8 , 44 , 32 , 7 , 756 , 1244 , 1984 , 75458 , 69246 , 436727 , 217948 , 5210574 , 582909 , 85027513 , 73836685 , 883887979 , 85311015 , 9934681467 , 4051354668
n×2
144363536
n×3
216545304
n×4
288727072
n×5
360908840
n÷2
36090884
n÷3
24060589.333333
n÷3
18045442
n÷5
14436353.6
n2
5210207631605824
n3
3.760819984964E+23
n4
2.7146263564444E+31
n5
1.9594652986755E+39
2 √n8495.9854048839
3 √n416.36655623062
4 √n92.173669802628
5 √n37.297996431719
1 , 2 , 4 , 8 , 277 , 554 , 1108 , 2216 , 32573 , 65146 , 130292 , 260584 , 9022721 , 18045442 , 36090884 , 72181768
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
-72181767 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 72181768 can be divided by 16 positive divisors.
The sum of these divisors (counting 72181768) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010011010110100000001000
3
Ternary
12000211012202211
4
Quaternary
10103112200020
5
Quinary
121434304033
6
Senary
11055034504
8
Octal
423264010
10
Decimal
72181768
12
Duodecimal
2020ba34
16
Hexadecimal
44d6808
20
Vigesimal
12b2e88
36
Base36
16z3t4
md5
646194ae6e158a0bcf99049b18a52e6f
sha1
dbd5b544f2f42af49663fef4d832969b1bd2f3d6
sha256
32394f39573cf8d51364e001508757f15ffb0182be471513110caaf228fb0026
sha512
56f6e301b8f1413bb19249484eaf36b7410500486cd1d5f23ae3cf8caadaeb6d6399a05940cfdf960602520acb40b656569d4267ea40598c7213d94123d81f5f
ripemd-160
65675efa5602037a0cf75cf2d0d8d550c558c01b
Diameter
144363536
Circumference
453531424.14385
Area
1.636835001913E+16
Volume
1.5753285914982E+24
Surface area
6.5473400076521E+16
Circumference
453531424.14385
Perimeter
288727072
Area
5210207631605824
Diagonal
102080435.26167
Surface area
31261245789634944
Volume
3.760819984964E+23
Space diagonal
125022489.55615
Perimeter
216545304
Area
2.2560860839811E+15
Altitude
62511244.778075
Surface area
2.2560860839811E+15
Volume
4.4321688569832E+22
Height
34026811.753889