81096989 is an odd 8-digits prime number following 81096988
and preceding 81096990 . In scientific notation, it is written as 8.1096989 × 10^7.
The sum of its digits is 50. It has a total of 1 prime factors and 2 positive divisors.
There are 81096988 positive integers (up to 81096989) that are relatively prime to 81096989.
81096989 has 2 divisors, whose sum is 81096990
The reverse of 81096989 is 98969018
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
eighty-one million ninety-six thousand nine hundred eighty-nine
Scientific notation
8.1096989 × 10^7
Engineering notation
8.1096989 × 10^6
Prime Factorization
81096989
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81096989
Product of the distinct prime numbers
The prime factorization of 81096989 is 81096989.
Since it has a total of 1 prime factors.
9 , 8 , 99 , 24 , 222 , 124 , 9165 , 3416 , 42353 , 43656 , 385083 , 694224 , 2962924 , 6801185 , 1825619 , 47127488 , 663420977 , 280540190 , 8457277839 , 8365320662
n×2
162193978
n×3
243290967
n×4
324387956
n×5
405484945
n÷2
40548494.5
n÷3
27032329.666667
n÷3
20274247.25
n÷5
16219397.8
n2
6576721624866121
n3
5.3335232126783E+23
n4
4.3253267330982E+31
n5
3.5077097449547E+39
2 √n
9005.3866657684
3 √n
432.84749646162
4 √n
94.896715779675
5 √n
38.1769251059
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81096990
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40548495
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9005.3867212908
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999753382
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81096989 can be divided by 2 positive divisors.
The sum of these divisors (counting 81096989) is 81096990, the average is 40548495.
Base
System
Value
2
Binary
100110101010111000100011101
3
Ternary
12122121011011012
4
Quaternary
10311113010131
5
Quinary
131230100424
6
Senary
12014105005
8
Octal
465270435
10
Decimal
81096989
12
Duodecimal
231ab165
16
Hexadecimal
4d5711d
20
Vigesimal
156h299
36
Base36
1ca6u5
md5
813bdd6326b934b36f36594863d42d8b
sha1
f6b33ecb42091eab45bf452416cea322971a0bbe
sha256
73d2a3bd1c06789328f443f80545049e506240de8ff86a802e2945cdfc63793d
sha512
f9c036207fd7e998f0692b4ffe856b2597740e23f5b63cac27fb8dc3cb03dc02a30cbc99de70f7182f0ed6d67a8091682baf8001b5f31d645118f0e28db0ee1a
ripemd-160
5e5df596fa5e6bb2e6b3715ecea05fa1bb9327f8
Diameter
162193978
Circumference
509547409.7413
Area
2.0661380341385E+16
Volume
2.2341009790268E+24
Surface area
8.2645521365538E+16
Circumference
509547409.7413
Perimeter
324387956
Area
6576721624866121
Diagonal
114688461.71142
Surface area
39460329749196726
Volume
5.3335232126783E+23
Space diagonal
140464105.28885
Perimeter
243290967
Area
2.8478040003763E+15
Altitude
70232052.644427
Surface area
2.8478040003763E+15
Volume
6.2856173855011E+22
Height
38229487.237141