81125764 is an even 8-digits composite number following 81125763
and preceding 81125765 . In scientific notation, it is written as 8.1125764 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors.
There are 40544768 positive integers (up to 81125764) that are relatively prime to 81125764.
81125764 has 12 divisors, whose sum is 142033500
The reverse of 81125764 is 46752118
Previous prime number is 4049
Is Prime? no Number parity even Number length 8 Sum of Digits 34 Digital Root 7
Name
eighty-one million one hundred twenty-five thousand seven hundred sixty-four
Scientific notation
8.1125764 × 10^7
Engineering notation
8.1125764 × 10^6
Prime Factorization
2 × 2 × 4049 × 5009
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
40562882 Product of the distinct prime numbers
The prime factorization of 81125764 is 2 × 2 × 4049 × 5009.
Since it has a total of 4 prime factors.
6 , 5 , 46 , 55 , 603 , 117 , 6460 , 4946 , 91145 , 57056 , 342349 , 622482 , 1533274 , 944078 , 2900696 , 42102559 , 970856043 , 235299939 , 1180403262 , 8496959431
n×2
162251528
n×3
243377292
n×4
324503056
n×5
405628820
n÷2
40562882
n÷3
27041921.333333
n÷3
20281441
n÷5
16225152.8
n2
6581389584583696
n3
5.3392025823099E+23
n4
4.3314688864067E+31
n5
3.5139372265197E+39
2 √n9006.984178958
3 √n432.89868502003
4 √n94.905132521682
5 √n38.179633924444
1 , 2 , 4 , 4049 , 5009 , 8098 , 10018 , 16196 , 20036 , 20281441 , 40562882 , 81125764
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-81125763 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81125764 can be divided by 12 positive divisors.
The sum of these divisors (counting 81125764) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110101011110000110000100
3
Ternary
12122122121121221
4
Quaternary
10311132012010
5
Quinary
131232011024
6
Senary
12014450124
8
Octal
465360604
10
Decimal
81125764
12
Duodecimal
23203944
16
Hexadecimal
4d5e184
20
Vigesimal
1570e84
36
Base36
1cat1g
md5
c4ea3dbffc00a742fef7f6f4c58c4a5e
sha1
ed64ce18f7f2994327c98f4e4c0b413297dc9f41
sha256
9b4375a8445801fa159baead8fd7c302f9a52d4ce45031f310e2fff6a46ae1b3
sha512
17936755b8c4df25e8946c9cee77757077271614ae7f6d73a99d48eaddc833237dcda635c8d7f3fc26f0408e596a0bcfbe3effaf00127739f7e639aed3de7d0c
ripemd-160
52a1091c9cded0014347d59616f71734ad653f4d
Diameter
162251528
Circumference
509728208.39852
Area
2.0676045169341E+16
Volume
2.236479947815E+24
Surface area
8.2704180677362E+16
Circumference
509728208.39852
Perimeter
324503056
Area
6581389584583696
Diagonal
114729155.70668
Surface area
39488337507502176
Volume
5.3392025823099E+23
Space diagonal
140513945.05084
Perimeter
243377292
Area
2.8498252862259E+15
Altitude
70256972.525421
Surface area
2.8498252862259E+15
Volume
6.2923105868002E+22
Height
38243051.902226