81330 is an even 5-digits composite number following 81329
and preceding 81331 . In scientific notation, it is written as 8.1330 × 10^4.
The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors.
There are 21680 positive integers (up to 81330) that are relatively prime to 81330.
81330 has 8 divisors, whose sum is 130176
The reverse of 81330 is 03318
Previous prime number is 15
Is Prime? no
Number parity even
Number length 5
Sum of Digits 15
Digital Root 6
Name
eighty-one thousand three hundred thirty
Scientific notation
8.1330 × 10^4
Engineering notation
8.1330 × 10^3
Prime Factorization
2 × 15 × 2711
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81330
Product of the distinct prime numbers
The prime factorization of 81330 is 2 × 15 × 2711.
Since it has a total of 3 prime factors.
9 , 3 , 37 , 18 , 313 , 523 , 2453 , 9706 , 58040 , 38230 , 105468 , 495800 , 2557734 , 1499552 , 55314172 , 97227024 , 439987693 , 395927998 , 1442698622 , 4767224241
n×2
162660
n×3
243990
n×4
325320
n×5
406650
n÷2
40665
n÷3
27110
n÷3
20332.5
n÷5
16266
n2
6614568900
n3
537962888637000
n4
4.3752521732847E+19
n5
3.5583925925325E+24
2 √n
285.18415103228
3 √n
43.326165809923
4 √n
16.887396218253
5 √n
9.5951143421134
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
-81329
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 81330 can be divided by 8 positive divisors.
The sum of these divisors (counting 81330) is 1, the average is 0.125.
Base
System
Value
2
Binary
10011110110110010
3
Ternary
11010120020
4
Quaternary
103312302
5
Quinary
10100310
6
Senary
1424310
8
Octal
236662
10
Decimal
81330
12
Duodecimal
3b096
16
Hexadecimal
13db2
20
Vigesimal
a36a
36
Base36
1qr6
md5
6dc6a2d8ca20d02b6622787dfe05f25e
sha1
33664f86129b539c21f85b8f07d7836e97dae95f
sha256
0d2838970de8f6ffeef86881edaf5bd9a6ea1cdc27ce76befec4707e3ff6c86f
sha512
e19debedebc4addc2a631197dcd18404fa8ee0267d57f82e749c8ff666d0854c0f8fa973420c972bb653cf9075e637b2d831f9fc96e57a411aebb074fa6ecd4a
ripemd-160
34c7b7e20e4193bc6e9597ea020b0c2008ac14cf
Diameter
162660
Circumference
511011.46103292
Area
20780281062.904
Volume
2.2534136784613E+15
Surface area
83121124251.614
Circumference
511011.46103292
Perimeter
325320
Area
6614568900
Diagonal
115017.9890278
Surface area
39687413400
Volume
537962888637000
Space diagonal
140867.69217958
Perimeter
243990
Area
2864192351.2412
Altitude
70433.846089788
Surface area
2864192351.2412
Volume
63399534430321
Height
38339.329675935