81209095 is an odd 8-digits composite number following 81209094
and preceding 81209096 . In scientific notation, it is written as 8.1209095 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 59061120 positive integers (up to 81209095) that are relatively prime to 81209095.
81209095 has 4 divisors, whose sum is 82685680
The reverse of 81209095 is 59090218
Previous prime number is 55
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million two hundred nine thousand ninety-five
Scientific notation
8.1209095 × 10^7
Engineering notation
8.1209095 × 10^6
Prime Factorization
55 × 1476529
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81209095
Product of the distinct prime numbers
The prime factorization of 81209095 is 55 × 1476529.
Since it has a total of 2 prime factors.
9 , 7 , 44 , 31 , 243 , 713 , 1529 , 9912 , 57741 , 21950 , 316863 , 38404 , 4374337 , 4457356 , 36360970 , 75585194 , 522770905 , 899737472 , 3986472111 , 7880069638
n×2
162418190
n×3
243627285
n×4
324836380
n×5
406045475
n÷2
40604547.5
n÷3
27069698.333333
n÷3
20302273.75
n÷5
16241819
n2
6594917110719025
n3
5.3556725016151E+23
n4
4.3492931697255E+31
n5
3.5320216220309E+39
2 √n
9011.6089018554
3 √n
433.04685634521
4 √n
94.929494372694
5 √n
38.1874741974
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81209094
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81209095 can be divided by 4 positive divisors.
The sum of these divisors (counting 81209095) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101110010011100000111
3
Ternary
12122210211221021
4
Quaternary
10311302130013
5
Quinary
131242142340
6
Senary
12020332011
8
Octal
465623407
10
Decimal
81209095
12
Duodecimal
23244007
16
Hexadecimal
4d72707
20
Vigesimal
157b2ef
36
Base36
1cclc7
md5
d7ffb9cc1ffb23dbc5f89594cf049ff5
sha1
72b7aed68b85c7e677b6dd27ebab2f94704a4d55
sha256
f9bfd0b423938f41cffc6ca8fee4a2870d50cd1f897ecf85334d95bc94d5762c
sha512
44a9900a3570912b4cf3229982d557fbd84408555c3690d21c68f0ef3dcf09663c511898908d116f1c42abd105a75a7c225ccf8d38fbe7f0f61eb0b469c90ed4
ripemd-160
0c8a06bdb6aa1871a850743e846bcccd2bb6e8ad
Diameter
162418190
Circumference
510251792.51335
Area
2.0718543146069E+16
Volume
2.2433788514809E+24
Surface area
8.2874172584274E+16
Circumference
510251792.51335
Perimeter
324836380
Area
6594917110719025
Diagonal
114847003.53705
Surface area
39569502664314150
Volume
5.3556725016151E+23
Space diagonal
140658278.57669
Perimeter
243627285
Area
2.8556828768677E+15
Altitude
70329139.288344
Surface area
2.8556828768677E+15
Volume
6.3117205728439E+22
Height
38282334.512348