81104909 is an odd 8-digits composite number following 81104908
and preceding 81104910 . In scientific notation, it is written as 8.1104909 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 73701376 positive integers (up to 81104909) that are relatively prime to 81104909.
81104909 has 8 divisors, whose sum is 88837560
The reverse of 81104909 is 90940118
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-one million one hundred four thousand nine hundred nine
Scientific notation
8.1104909 × 10^7
Engineering notation
8.1104909 × 10^6
Prime Factorization
17 × 29 × 164513
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81104909
Product of the distinct prime numbers
The prime factorization of 81104909 is 17 × 29 × 164513.
Since it has a total of 3 prime factors.
1 , 2 , 94 , 52 , 445 , 1 , 5434 , 6166 , 75338 , 53620 , 979031 , 759194 , 7269440 , 9041407 , 58144627 , 97492990 , 940590284 , 280493094 , 5233381680 , 6951230504
n×2
162209818
n×3
243314727
n×4
324419636
n×5
405524545
n÷2
40552454.5
n÷3
27034969.666667
n÷3
20276227.25
n÷5
16220981.8
n2
6578006263898281
n3
5.335085994349E+23
n4
4.3270166407885E+31
n5
3.5094229089264E+39
2 √n
9005.8263918421
3 √n
432.86158675285
4 √n
94.899032618052
5 √n
38.177670754881
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81104908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81104909 can be divided by 8 positive divisors.
The sum of these divisors (counting 81104909) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101011001000000001101
3
Ternary
12122121120000112
4
Quaternary
10311121000031
5
Quinary
131230324114
6
Senary
12014205405
8
Octal
465310015
10
Decimal
81104909
12
Duodecimal
231b3865
16
Hexadecimal
4d5900d
20
Vigesimal
156i259
36
Base36
1cacy5
md5
5e80515c97f4828265aa9c6175673d4d
sha1
a9304e2437a507fc266c30ead149f3ddc9a19a7c
sha256
edc1faf776ab407cab94045567060676b89b120a11be9480a9b2604c3c35c55a
sha512
f70c57be5bd9e550867ab64353597c214802222ecacf58b5a51b84f8aaac04362d47238bae1bbf5c2cab31b511d79e7737013c26eb05bbccd5bd24ef224f944a
ripemd-160
539fc422fe0cd0af715ac43236f1b48cf40439d6
Diameter
162209818
Circumference
509597172.56894
Area
2.066541615393E+16
Volume
2.2347555954822E+24
Surface area
8.2661664615722E+16
Circumference
509597172.56894
Perimeter
324419636
Area
6578006263898281
Diagonal
114699662.28284
Surface area
39468037583389686
Volume
5.335085994349E+23
Space diagonal
140477823.13125
Perimeter
243314727
Area
2.8483602653945E+15
Altitude
70238911.565625
Surface area
2.8483602653945E+15
Volume
6.2874591413626E+22
Height
38233220.760945