81096987 is an odd 8-digits composite number following 81096986
and preceding 81096988 . In scientific notation, it is written as 8.1096987 × 10^7.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 50884352 positive integers (up to 81096987) that are relatively prime to 81096987.
81096987 has 8 divisors, whose sum is 114489936
The reverse of 81096987 is 78969018
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
eighty-one million ninety-six thousand nine hundred eighty-seven
Scientific notation
8.1096987 × 10^7
Engineering notation
8.1096987 × 10^6
Prime Factorization
3 × 17 × 1590137
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81096987
Product of the distinct prime numbers
The prime factorization of 81096987 is 3 × 17 × 1590137.
Since it has a total of 3 prime factors.
10 , 1 , 5 , 47 , 699 , 965 , 3875 , 2377 , 60680 , 42735 , 534500 , 769672 , 631638 , 741430 , 82183454 , 14937934 , 572273397 , 426398408 , 237058710 , 9365651653
n×2
162193974
n×3
243290961
n×4
324387948
n×5
405484935
n÷2
40548493.5
n÷3
27032329
n÷3
20274246.75
n÷5
16219397.4
n2
6576721300478169
n3
5.333522818075E+23
n4
4.3253263064163E+31
n5
3.507709312422E+39
2 √n
9005.3865547238
3 √n
432.84749290335
4 √n
94.896715194593
5 √n
38.176924917597
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
-81096986
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 81096987 can be divided by 8 positive divisors.
The sum of these divisors (counting 81096987) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101010111000100011011
3
Ternary
12122121011011010
4
Quaternary
10311113010123
5
Quinary
131230100422
6
Senary
12014105003
8
Octal
465270433
10
Decimal
81096987
12
Duodecimal
231ab163
16
Hexadecimal
4d5711b
20
Vigesimal
156h297
36
Base36
1ca6u3
md5
9e77a66a76f54a337d9e57653fc62da4
sha1
94120fdbcb17eff08a5c3f2dfddc3d37f62b1d0c
sha256
9f96814a12d19ad87d8df5cc996adbf2d00e7344615d33afd1b593455807f3c2
sha512
27931d56508e87eb98b57703a5feb93a508ad97141fd3e1d0478928cdc6d89493262183bd155de2b35e2ed1b2d5ba17fbbbef924f1c29f22f1ccffe04b1002d7
ripemd-160
3829a0080abd4ad95a8c828df5704e104e687044
Diameter
162193974
Circumference
509547397.17493
Area
2.066137932229E+16
Volume
2.2341008137357E+24
Surface area
8.2645517289159E+16
Circumference
509547397.17493
Perimeter
324387948
Area
6576721300478169
Diagonal
114688458.88299
Surface area
39460327802869014
Volume
5.333522818075E+23
Space diagonal
140464101.82475
Perimeter
243290961
Area
2.8478038599122E+15
Altitude
70232050.912376
Surface area
2.8478038599122E+15
Volume
6.2856169204567E+22
Height
38229486.294332