81008073 is an odd 8-digits composite number following 81008072
and preceding 81008074 . In scientific notation, it is written as 8.1008073 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 54005364 positive integers (up to 81008073) that are relatively prime to 81008073.
81008073 has 8 divisors, whose sum is 120012000
The reverse of 81008073 is 37080018
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
eighty-one million eight thousand seventy-three
Scientific notation
8.1008073 × 10^7
Engineering notation
8.1008073 × 10^6
Prime Factorization
9 × 3 × 3000299
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81008073
Product of the distinct prime numbers
The prime factorization of 81008073 is 9 × 3 × 3000299.
Since it has a total of 3 prime factors.
10 , 2 , 40 , 17 , 735 , 609 , 7797 , 401 , 61018 , 21897 , 617096 , 500869 , 4971736 , 4927846 , 43221700 , 45960225 , 375015917 , 698432405 , 1992311756 , 8811171801
n×2
162016146
n×3
243024219
n×4
324032292
n×5
405040365
n÷2
40504036.5
n÷3
27002691
n÷3
20252018.25
n÷5
16201614.6
n2
6562307891173329
n3
5.3159991669665E+23
n4
4.3063884858556E+31
n5
3.4885223282855E+39
2 √n
9000.4484888254
3 √n
432.68924503542
4 √n
94.87069351926
5 √n
38.168549877115
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
-81008072
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 81008073 can be divided by 8 positive divisors.
The sum of these divisors (counting 81008073) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101000001010111001001
3
Ternary
12122102122012000
4
Quaternary
10311001113021
5
Quinary
131214224243
6
Senary
12012141213
8
Octal
465012711
10
Decimal
81008073
12
Duodecimal
23167809
16
Hexadecimal
4d415c9
20
Vigesimal
156603d
36
Base36
1c8a89
md5
17ffa09d5afcb5b92cc21f64c98fd9d8
sha1
77c405bec0054f06ecb2172021b77e04abb2da33
sha256
e8be13463efb22c6d1635261a43042cb4ddc512fddaf87269872ef586854088b
sha512
c4d2dca4dc8a1c77a2dc17b487f91f5a8a440017c9550eb5c56cffe16fec7204943c30326c44ab018c4fbb766b2cbaef34ab5e29a7217b330135b6fb2072a198
ripemd-160
fa87dc5538e89cff33d0c87f15520a2fb9d7dcd4
Diameter
162016146
Circumference
508988734.03653
Area
2.0616098261504E+16
Volume
2.2267605239242E+24
Surface area
8.2464393046018E+16
Circumference
508988734.03653
Perimeter
324032292
Area
6562307891173329
Diagonal
114562715.49831
Surface area
39373847347039974
Volume
5.3159991669665E+23
Space diagonal
140310098.25925
Perimeter
243024219
Area
2.8415626706056E+15
Altitude
70155049.129624
Surface area
2.8415626706056E+15
Volume
6.2649650995734E+22
Height
38187571.83277