81128214 is an even 8-digits composite number following 81128213
and preceding 81128215 . In scientific notation, it is written as 8.1128214 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors.
There are 25619328 positive integers (up to 81128214) that are relatively prime to 81128214.
81128214 has 24 divisors, whose sum is 185030040
The reverse of 81128214 is 41282118
Previous prime number is 19
Is Prime? no Number parity even Number length 8 Sum of Digits 27 Digital Root 9
Name
eighty-one million one hundred twenty-eight thousand two hundred fourteen
Scientific notation
8.1128214 × 10^7
Engineering notation
8.1128214 × 10^6
Prime Factorization
2 × 3 × 3 × 19 × 237217
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
27042738 Product of the distinct prime numbers
The prime factorization of 81128214 is 2 × 3 × 3 × 19 × 237217.
Since it has a total of 5 prime factors.
3 , 4 , 40 , 48 , 484 , 52 , 7772 , 4846 , 3548 , 24702 , 964318 , 264670 , 3616693 , 1648470 , 35447437 , 25083216 , 916418302 , 474798999 , 9890286721 , 52878791
n×2
162256428
n×3
243384642
n×4
324512856
n×5
405641070
n÷2
40564107
n÷3
27042738
n÷3
20282053.5
n÷5
16225642.8
n2
6581787106829796
n3
5.3396863290533E+23
n4
4.3319921519631E+31
n5
3.5144678635078E+39
2 √n9007.1201834993
3 √n432.90304282635
4 √n94.905849047882
5 √n38.179864526829
1 , 2 , 3 , 6 , 9 , 18 , 19 , 38 , 57 , 114 , 171 , 342 , 237217 , 474434 , 711651 , 1423302 , 2134953 , 4269906 , 4507123 , 9014246 , 13521369 , 27042738 , 40564107 , 81128214
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-81128213 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 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
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81128214 can be divided by 24 positive divisors.
The sum of these divisors (counting 81128214) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100110101011110101100010110
3
Ternary
12122122201222200
4
Quaternary
10311132230112
5
Quinary
131232100324
6
Senary
12014505330
8
Octal
465365426
10
Decimal
81128214
12
Duodecimal
23205246
16
Hexadecimal
4d5eb16
20
Vigesimal
15710ae
36
Base36
1cauxi
md5
34102254471678c0876cccb1f9f1175d
sha1
bdbe655323e5e1ac529a20d2c40eb72ebbb367e5
sha256
a9cd2a79c480303173079e442f2fdb87f955689a424df06b901b9b865c1a5513
sha512
8ce915f064dcd4d600d0d9623cc026dc32d360b0909e1ea743dd594b41ce3983f868dff2c0ae2a347e56c5e9d8bd1b36b2dc0ad92e49173c78ef1e6d075e9920
ripemd-160
ae4be2f60537db75f560de64ed2b5f8937d96681
Diameter
162256428
Circumference
509743602.20252
Area
2.0677294022309E+16
Volume
2.236682579177E+24
Surface area
8.2709176089234E+16
Circumference
509743602.20252
Perimeter
324512856
Area
6581787106829796
Diagonal
114732620.52991
Surface area
39490722640978776
Volume
5.3396863290533E+23
Space diagonal
140518188.57532
Perimeter
243384642
Area
2.8499974184077E+15
Altitude
70259094.28766
Surface area
2.8499974184077E+15
Volume
6.2928806878045E+22
Height
38244206.843302