81466906 is an even 8-digits composite number following 81466905
and preceding 81466907 . In scientific notation, it is written as 8.1466906 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 40733452 positive integers (up to 81466906) that are relatively prime to 81466906.
81466906 has 4 divisors, whose sum is 122200362
The reverse of 81466906 is 60966418
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighty-one million four hundred sixty-six thousand nine hundred six
Scientific notation
8.1466906 × 10^7
Engineering notation
8.1466906 × 10^6
Prime Factorization
2 × 40733453
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81466906
Product of the distinct prime numbers
The prime factorization of 81466906 is 2 × 40733453.
Since it has a total of 2 prime factors.
7 , 5 , 56 , 19 , 571 , 262 , 8684 , 7145 , 55920 , 51477 , 868291 , 694369 , 5473040 , 5875124 , 78219670 , 26941256 , 795335688 , 984242290 , 3962227035 , 7958191329
n×2
162933812
n×3
244400718
n×4
325867624
n×5
407334530
n÷2
40733453
n÷3
27155635.333333
n÷3
20366726.5
n÷5
16293381.2
n2
6636856773212836
n3
5.4068418687879E+23
n4
4.4047867828141E+31
n5
3.5884435078556E+39
2 √n
9025.9019493899
3 √n
433.50463063335
4 √n
95.004746983453
5 √n
38.211689890682
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81466905
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81466906 can be divided by 4 positive divisors.
The sum of these divisors (counting 81466906) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110110001011000011010
3
Ternary
12200021221120211
4
Quaternary
10312301120122
5
Quinary
131323420111
6
Senary
12030041334
8
Octal
466613032
10
Decimal
81466906
12
Duodecimal
2334924a
16
Hexadecimal
4db161a
20
Vigesimal
1593756
36
Base36
1ci49m
md5
47c46de763639b4ea507759d7a54922b
sha1
93e528cd9b0eebaf7a09ed9031f36153fc586bbe
sha256
310582bf60613782990b15a6449c5e71fb7924a29c6ca601b3d3411d81b4ca36
sha512
09d5b6bf7b991ce962bdaddc25c9fa1c673606d7f62b9baaf87b0c7c66249cbcf7c640bb52095c0ed375f99fed2609a97e5fc8a2ecd35c77da700c24929dd6f0
ripemd-160
97fb35e526219fc023dea83787200797128a3139
Diameter
162933812
Circumference
511871666.80058
Area
2.0850300481653E+16
Volume
2.2648126258808E+24
Surface area
8.3401201926612E+16
Circumference
511871666.80058
Perimeter
325867624
Area
6636856773212836
Diagonal
115211603.34977
Surface area
39821140639277016
Volume
5.4068418687879E+23
Space diagonal
141104820.32744
Perimeter
244400718
Area
2.8738432834406E+15
Altitude
70552410.163719
Surface area
2.8738432834406E+15
Volume
6.3720242503722E+22
Height
38403867.783258