81133668 is an even 8-digits composite number following 81133667
and preceding 81133669 . In scientific notation, it is written as 8.1133668 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors.
There are 21072960 positive integers (up to 81133668) that are relatively prime to 81133668.
81133668 has 24 divisors, whose sum is 157355520
The reverse of 81133668 is 86633118
Previous prime number is 11
Is Prime? no Number parity even Number length 8 Sum of Digits 36 Digital Root 9
Name
eighty-one million one hundred thirty-three thousand six hundred sixty-eight
Scientific notation
8.1133668 × 10^7
Engineering notation
8.1133668 × 10^6
Prime Factorization
2 × 2 × 63 × 11 × 29269
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
40566834 Product of the distinct prime numbers
The prime factorization of 81133668 is 2 × 2 × 63 × 11 × 29269.
Since it has a total of 5 prime factors.
3 , 9 , 19 , 87 , 856 , 53 , 4558 , 3965 , 57952 , 71466 , 160493 , 342941 , 5920372 , 7866847 , 95694589 , 26581034 , 853082411 , 755762483 , 2058803904 , 5425151785
n×2
162267336
n×3
243401004
n×4
324534672
n×5
405668340
n÷2
40566834
n÷3
27044556
n÷3
20283417
n÷5
16226733.6
n2
6582672083134224
n3
5.3407633134588E+23
n4
4.3331571754075E+31
n5
3.5156493566133E+39
2 √n9007.4229388877
3 √n432.9127435218
4 √n94.907444064666
5 √n38.18037785597
1 , 2 , 4 , 11 , 22 , 44 , 63 , 126 , 252 , 693 , 1386 , 2772 , 29269 , 58538 , 117076 , 321959 , 643918 , 1287836 , 1843947 , 3687894 , 7375788 , 20283417 , 40566834 , 81133668
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
-81133667 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 81133668 can be divided by 24 positive divisors.
The sum of these divisors (counting 81133668) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100110101100000000001100100
3
Ternary
12122200000110200
4
Quaternary
10311200001210
5
Quinary
131232234133
6
Senary
12014550500
8
Octal
465400144
10
Decimal
81133668
12
Duodecimal
23208430
16
Hexadecimal
4d60064
20
Vigesimal
1571e38
36
Base36
1caz50
md5
f8c5e515546d21f40cf2a2ace1c643a0
sha1
11630e63510e95e62036366f1d8df3bace65ae00
sha256
b7459c1009e5ec6582ea4dd0868fac5308c356846ea6108c63094ddc3cb15276
sha512
be1c95af08952c6d76ed13fca636affad85759217ae9a46d7b6c75899e2b0d32d5705f981d0cf70e9d5948e4c7d3a0858de43de449496d9825ad768d5692d9dd
ripemd-160
73e2622368c817dcc9abf062a67afc3671603d36
Diameter
162267336
Circumference
509777870.69519
Area
2.0680074257365E+16
Volume
2.2371337053499E+24
Surface area
8.272029702946E+16
Circumference
509777870.69519
Perimeter
324534672
Area
6582672083134224
Diagonal
114740333.65068
Surface area
39496032498805344
Volume
5.3407633134588E+23
Space diagonal
140527635.18043
Perimeter
243401004
Area
2.8503806243884E+15
Altitude
70263817.590213
Surface area
2.8503806243884E+15
Volume
6.2941499260984E+22
Height
38246777.883559