81008079 is an odd 8-digits composite number following 81008078
and preceding 81008080 . In scientific notation, it is written as 8.1008079 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 53963520 positive integers (up to 81008079) that are relatively prime to 81008079.
81008079 has 8 divisors, whose sum is 108094512
The reverse of 81008079 is 97080018
Previous prime number is 1381
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million eight thousand seventy-nine
Scientific notation
8.1008079 × 10^7
Engineering notation
8.1008079 × 10^6
Prime Factorization
3 × 1381 × 19553
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81008079
Product of the distinct prime numbers
The prime factorization of 81008079 is 3 × 1381 × 19553.
Since it has a total of 3 prime factors.
4 , 5 , 71 , 69 , 343 , 650 , 1139 , 4137 , 22012 , 57135 , 421425 , 845705 , 8765493 , 5433568 , 58276361 , 67546110 , 699376592 , 253629328 , 7200959325 , 4291500700
n×2
162016158
n×3
243024237
n×4
324032316
n×5
405040395
n÷2
40504039.5
n÷3
27002693
n÷3
20252019.75
n÷5
16201615.8
n2
6562308863270241
n3
5.316000348182E+23
n4
4.3063897616955E+31
n5
3.4885236202022E+39
2 √n
9000.4488221421
3 √n
432.68925571804
4 √n
94.87069527595
5 √n
38.168550442519
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
-81008078
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 81008079 can be divided by 8 positive divisors.
The sum of these divisors (counting 81008079) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101000001010111001111
3
Ternary
12122102122012020
4
Quaternary
10311001113033
5
Quinary
131214224304
6
Senary
12012141223
8
Octal
465012717
10
Decimal
81008079
12
Duodecimal
23167813
16
Hexadecimal
4d415cf
20
Vigesimal
156603j
36
Base36
1c8a8f
md5
b2248c0680bddef06ced2f3e90189711
sha1
8beb0991284dc99a2950922bb7e4accf21b74e3c
sha256
d2581b8fe5c69f6e512664aeb205a8ed7f6fbc6d005aeaa38d9bb92d72d29be9
sha512
c4caf033c173e9bfc417eb67243c931c8011a6a615965c171a3a55696061640078b1e203a88dd116851f415adb61d50b85aa50d0a46d07255ba05ad18aeeb02c
ripemd-160
b25cceab4250bccbe0c3aae368f4d9465ff24cb9
Diameter
162016158
Circumference
508988771.73564
Area
2.0616101315437E+16
Volume
2.2267610187106E+24
Surface area
8.2464405261748E+16
Circumference
508988771.73564
Perimeter
324032316
Area
6562308863270241
Diagonal
114562723.98359
Surface area
39373853179621446
Volume
5.316000348182E+23
Space diagonal
140310108.65155
Perimeter
243024237
Area
2.8415630915359E+15
Altitude
70155054.325777
Surface area
2.8415630915359E+15
Volume
6.2649664916492E+22
Height
38187574.661197