81551166 is an even 8-digits composite number following 81551165
and preceding 81551167 . In scientific notation, it is written as 8.1551166 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 27183720 positive integers (up to 81551166) that are relatively prime to 81551166.
81551166 has 8 divisors, whose sum is 163102344
The reverse of 81551166 is 66115518
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million five hundred fifty-one thousand one hundred sixty-six
Scientific notation
8.1551166 × 10^7
Engineering notation
8.1551166 × 10^6
Prime Factorization
2 × 3 × 13591861
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81551166
Product of the distinct prime numbers
The prime factorization of 81551166 is 2 × 3 × 13591861.
Since it has a total of 3 prime factors.
2 , 6 , 86 , 45 , 597 , 352 , 9306 , 1234 , 67413 , 29594 , 922517 , 998495 , 3461660 , 909256 , 48227746 , 75225515 , 616048684 , 907103675 , 5613970146 , 9937324569
n×2
163102332
n×3
244653498
n×4
326204664
n×5
407755830
n÷2
40775583
n÷3
27183722
n÷3
20387791.5
n÷5
16310233.2
n2
6650592675959556
n3
5.4236358731556E+23
n4
4.4230382941527E+31
n5
3.607039301508E+39
2 √n
9030.5684206477
3 √n
433.65403491728
4 √n
95.029302957813
5 √n
38.219590978209
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
-81551165
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 81551166 can be divided by 8 positive divisors.
The sum of these divisors (counting 81551166) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111000101111100111110
3
Ternary
12200110020011120
4
Quaternary
10313011330332
5
Quinary
131334114131
6
Senary
12031531410
8
Octal
467057476
10
Decimal
81551166
12
Duodecimal
23389b66
16
Hexadecimal
4dc5f3e
20
Vigesimal
159dhi6
36
Base36
1cjxa6
md5
0b9aed14191ae691db38d98d7a1da0da
sha1
8043709dca25c006c01ce19f742121d2f7309050
sha256
78d8c158e341528cec0a632ad06c450056ea5ffd8f2ddb066a0c845952243bc1
sha512
b2cc16d918f214e7e781dd9758cf6522bb914c8915497ed712cea79618444a7e15c50f2517e1bada400750e6ede6bc57bfb21a3c57b79bb47697ff5e4adc18cd
ripemd-160
bfc37f314165d155c3cea52ed70b47fc6fd3252c
Diameter
163102332
Circumference
512401087.99456
Area
2.0893453092813E+16
Volume
2.2718472819802E+24
Surface area
8.357381237125E+16
Circumference
512401087.99456
Perimeter
326204664
Area
6650592675959556
Diagonal
115330764.98454
Surface area
39903556055757336
Volume
5.4236358731556E+23
Space diagonal
141250762.92848
Perimeter
244653498
Area
2.8797911038019E+15
Altitude
70625381.464242
Surface area
2.8797911038019E+15
Volume
6.3918161743249E+22
Height
38443588.32818