81098081 is an odd 8-digits prime number following 81098080
and preceding 81098082 . In scientific notation, it is written as 8.1098081 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 81098080 positive integers (up to 81098081) that are relatively prime to 81098081.
81098081 has 2 divisors, whose sum is 81098082
The reverse of 81098081 is 18089018
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
eighty-one million ninety-eight thousand eighty-one
Scientific notation
8.1098081 × 10^7
Engineering notation
8.1098081 × 10^6
Prime Factorization
81098081
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81098081
Product of the distinct prime numbers
The prime factorization of 81098081 is 81098081.
Since it has a total of 1 prime factors.
9 , 10 , 35 , 90 , 186 , 901 , 2313 , 1970 , 68513 , 33445 , 921661 , 23655 , 3883765 , 3674248 , 67088489 , 40988838 , 610511185 , 521569994 , 6269386199 , 6869531682
n×2
162196162
n×3
243294243
n×4
324392324
n×5
405490405
n÷2
40549040.5
n÷3
27032693.666667
n÷3
20274520.25
n÷5
16219616.2
n2
6576898741882561
n3
5.3337386689799E+23
n4
4.3255597060976E+31
n5
3.5079459141544E+39
2 √n
9005.4472959426
3 √n
432.84943926841
4 √n
94.897035232628
5 √n
38.17702791854
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81098082
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40549041
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9005.4473514646
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999753385
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81098081 can be divided by 2 positive divisors.
The sum of these divisors (counting 81098081) is 81098082, the average is 40549041.
Base
System
Value
2
Binary
100110101010111010101100001
3
Ternary
12122121012122122
4
Quaternary
10311113111201
5
Quinary
131230114311
6
Senary
12014114025
8
Octal
465272541
10
Decimal
81098081
12
Duodecimal
231ab915
16
Hexadecimal
4d57561
20
Vigesimal
156h541
36
Base36
1ca7oh
md5
de41fcdbc6dc4f83e93c900764a00a4c
sha1
41c86a862130f72c5169c13ca7f757cf51c8ce45
sha256
a18140f27c372ff5e9a5decb6ffef63c1a49983679e6698a12511d0201e24afa
sha512
ad15f406f4fe854d09f195597e8748683835954c65cb9d73e5024ecafba94bb4ec0a4f716739cbfd591ea58e6676ebb0fdb57ca89cde8c31858bb12ad978a4c0
ripemd-160
b226699e656cbf712d4fa1154698abd68aef0a93
Diameter
162196162
Circumference
509554270.97966
Area
2.0661936770902E+16
Volume
2.2341912291513E+24
Surface area
8.2647747083609E+16
Circumference
509554270.97966
Perimeter
324392324
Area
6576898741882561
Diagonal
114690006.03263
Surface area
39461392451295366
Volume
5.3337386689799E+23
Space diagonal
140465996.68834
Perimeter
243294243
Area
2.8478806942941E+15
Altitude
70232998.344168
Surface area
2.8478806942941E+15
Volume
6.2858713031877E+22
Height
38230002.010877