81497171 is an odd 8-digits composite number following 81497170
and preceding 81497172 . In scientific notation, it is written as 8.1497171 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 67601160 positive integers (up to 81497171) that are relatively prime to 81497171.
81497171 has 8 divisors, whose sum is 96144384
The reverse of 81497171 is 17179418
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million four hundred ninety-seven thousand one hundred seventy-one
Scientific notation
8.1497171 × 10^7
Engineering notation
8.1497171 × 10^6
Prime Factorization
7 × 31 × 375563
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81497171
Product of the distinct prime numbers
The prime factorization of 81497171 is 7 × 31 × 375563.
Since it has a total of 3 prime factors.
4 , 9 , 99 , 26 , 359 , 94 , 6612 , 5690 , 1173 , 3483 , 521406 , 337927 , 3620464 , 1973360 , 19457750 , 79931485 , 649339100 , 17412110 , 7922171042 , 3100907344
n×2
162994342
n×3
244491513
n×4
325988684
n×5
407485855
n÷2
40748585.5
n÷3
27165723.666667
n÷3
20374292.75
n÷5
16299434.2
n2
6641788881003241
n3
5.4128700418102E+23
n4
4.4113359539818E+31
n5
3.5951140058011E+39
2 √n
9027.5783574556
3 √n
433.55830638926
4 √n
95.013569333309
5 √n
38.214528601606
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
-81497170
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 81497171 can be divided by 8 positive divisors.
The sum of these divisors (counting 81497171) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110111000110001010011
3
Ternary
12200100111002202
4
Quaternary
10312320301103
5
Quinary
131330402141
6
Senary
12030433415
8
Octal
466706123
10
Decimal
81497171
12
Duodecimal
2336286b
16
Hexadecimal
4db8c53
20
Vigesimal
15972ib
36
Base36
1cirmb
md5
39e8f6eb32f7a3844e0e2826962d9322
sha1
89b5d2d0fbea8025c381d1ce63d52c8249cbc28a
sha256
76be8001133e83fe4c8aa38e525afbc6ad291d21865dbd8ac6251595365d2507
sha512
9ce6fb9eb7edd594d2f42cd929a6edfe8313f2cf9fc60549a217bbf69d5c4574e37175df74ef2df67aedad1c17acc56b1c508afc302b04d91718fbc70005fc48
ripemd-160
5d677dd0c7e8ac5acc9091056ced83265051633e
Diameter
162994342
Circumference
512061827.4039
Area
2.0865795155254E+16
Volume
2.2673377010916E+24
Surface area
8.3463180621017E+16
Circumference
512061827.4039
Perimeter
325988684
Area
6641788881003241
Diagonal
115254404.52324
Surface area
39850733286019446
Volume
5.4128700418102E+23
Space diagonal
141157240.84513
Perimeter
244491513
Area
2.8759789487609E+15
Altitude
70578620.422564
Surface area
2.8759789487609E+15
Volume
6.3791285204092E+22
Height
38418134.84108