81108927 is an odd 8-digits composite number following 81108926
and preceding 81108928 . In scientific notation, it is written as 8.1108927 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors.
There are 51535440 positive integers (up to 81108927) that are relatively prime to 81108927.
81108927 has 24 divisors, whose sum is 122769920
The reverse of 81108927 is 72980118
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
eighty-one million one hundred eight thousand nine hundred twenty-seven
Scientific notation
8.1108927 × 10^7
Engineering notation
8.1108927 × 10^6
Prime Factorization
3 × 3 × 31 × 67 × 4339
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
27036309
Product of the distinct prime numbers
The prime factorization of 81108927 is 3 × 3 × 31 × 67 × 4339.
Since it has a total of 5 prime factors.
10 , 5 , 35 , 17 , 594 , 387 , 5894 , 3014 , 56340 , 52015 , 983396 , 2473 , 5106435 , 7941761 , 733452 , 97337576 , 538462030 , 112806703 , 7928394811 , 9208575045
n×2
162217854
n×3
243326781
n×4
324435708
n×5
405544635
n÷2
40554463.5
n÷3
27036309
n÷3
20277231.75
n÷5
16221785.4
n2
6578658039091329
n3
5.3358789465062E+23
n4
4.3278741595301E+31
n5
3.5102922927051E+39
2 √n
9006.0494668861
3 √n
432.86873473422
4 √n
94.900207939109
5 √n
38.17804901766
1 , 3 , 9 , 31 , 67 , 93 , 201 , 279 , 603 , 2077 , 4339 , 6231 , 13017 , 18693 , 39051 , 134509 , 290713 , 403527 , 872139 , 1210581 , 2616417 , 9012103 , 27036309 , 81108927
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81108926
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81108927 can be divided by 24 positive divisors.
The sum of these divisors (counting 81108927) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100110101011001111110111111
3
Ternary
12122121202112100
4
Quaternary
10311121332333
5
Quinary
131230441202
6
Senary
12014240143
8
Octal
465317677
10
Decimal
81108927
12
Duodecimal
231b6053
16
Hexadecimal
4d59fbf
20
Vigesimal
156ic67
36
Base36
1cag1r
md5
e98e754ba264f20e5c80c99bde494f5f
sha1
9094c002113898bdaf7bffa3f1040eee19765cad
sha256
0f04e8f2b4bc3dcfb25111b7a767b6ccb7693bbd88f45cbc6675063698792298
sha512
3ef79a73a18fc553a7c5033803bc468ff4289faea21deb20174222d9e24f08fe74b1724b2c6038a00b6af5ad97216f2e30cf26639399655c162d5bcd564d909c
ripemd-160
cc8197bbbb4544fe5af083fcdd80c465cd505d4f
Diameter
162217854
Circumference
509622418.4075
Area
2.0667463766089E+16
Volume
2.2350877465051E+24
Surface area
8.2669855064355E+16
Circumference
509622418.4075
Perimeter
324435708
Area
6578658039091329
Diagonal
114705344.59293
Surface area
39471948234547974
Volume
5.3358789465062E+23
Space diagonal
140484782.5114
Perimeter
243326781
Area
2.8486424923319E+15
Altitude
70242391.255698
Surface area
2.8486424923319E+15
Volume
6.2883936444418E+22
Height
38235114.86431