81336280 is an even 8-digits composite number following 81336279
and preceding 81336281 . In scientific notation, it is written as 8.1336280 × 10^7.
The sum of its digits is 31. It has a total of 6 prime factors and 32 positive divisors.
There are 30898560 positive integers (up to 81336280) that are relatively prime to 81336280.
81336280 has 32 divisors, whose sum is 154929600
The reverse of 81336280 is 08263318
Previous prime number is 419
Is Prime? no Number parity even Number length 8 Sum of Digits 31 Digital Root 4
Name
eighty-one million three hundred thirty-six thousand two hundred eighty
Scientific notation
8.1336280 × 10^7
Engineering notation
8.1336280 × 10^6
Prime Factorization
2 × 2 × 2 × 115 × 419 × 211
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
6 Total number of prime factors
rad Radical
20334070 Product of the distinct prime numbers
The prime factorization of 81336280 is 2 × 2 × 2 × 115 × 419 × 211.
Since it has a total of 6 prime factors.
9 , 4 , 100 , 98 , 551 , 571 , 4745 , 6048 , 31358 , 56826 , 5606 , 801146 , 9684111 , 8880493 , 3309931 , 54199252 , 425279323 , 469856090 , 7352205161 , 5853795343
n×2
162672560
n×3
244008840
n×4
325345120
n×5
406681400
n÷2
40668140
n÷3
27112093.333333
n÷3
20334070
n÷5
16267256
n2
6615590444238400
n3
5.380875167379E+23
n4
4.3766036925898E+31
n5
3.5597666338952E+39
2 √n9018.662872067
3 √n433.27280942996
4 √n94.96664083807
5 √n38.199428114974
1 , 2 , 4 , 8 , 115 , 211 , 230 , 419 , 422 , 460 , 838 , 844 , 920 , 1676 , 1688 , 3352 , 24265 , 48185 , 48530 , 88409 , 96370 , 97060 , 176818 , 192740 , 194120 , 353636 , 385480 , 707272 , 10167035 , 20334070 , 40668140 , 81336280
32 divisors
τ Total Divisors
32 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-81336279 Sum of the proper positive divisors of n
A Arithmetic Mean
0.03125 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
32 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81336280 can be divided by 32 positive divisors.
The sum of these divisors (counting 81336280) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110110010001011111011000
3
Ternary
12200001022101211
4
Quaternary
10312101133120
5
Quinary
131310230110
6
Senary
12023152504
8
Octal
466213730
10
Decimal
81336280
12
Duodecimal
232a5734
16
Hexadecimal
4d917d8
20
Vigesimal
15870e0
36
Base36
1cfbh4
md5
e90a2fd39858d56daac6372f80ce1799
sha1
53f8a3299a0bbdc6b9e5e9c5743865ad95ba566e
sha256
09c304d53170236def5be6b595de4aeaf0a8d28d95b53617d445a4b5a7023274
sha512
68350677b644db99b6982b688a8d2a6bf0f805285e4264159f9ca7e6100332cd63d611cd14ef50b940edd77e7b78a4fc67bf8f9e6ec1fb8ad2e00350c7b63595
ripemd-160
c0fd7e4fa51bcfeb7bf8744f00b64e6381ed58ba
Diameter
162672560
Circumference
511050919.43664
Area
2.0783490338778E+16
Volume
2.2539357194295E+24
Surface area
8.3133961355113E+16
Circumference
511050919.43664
Perimeter
325345120
Area
6615590444238400
Diagonal
115026870.28898
Surface area
39693542665430400
Volume
5.380875167379E+23
Space diagonal
140878569.45865
Perimeter
244008840
Area
2.864634692872E+15
Altitude
70439284.729324
Surface area
2.864634692872E+15
Volume
6.3414221992866E+22
Height
38342290.096325