81330762 is an even 8-digits composite number following 81330761
and preceding 81330763 . In scientific notation, it is written as 8.1330762 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 27067920 positive integers (up to 81330762) that are relatively prime to 81330762.
81330762 has 16 divisors, whose sum is 162915552
The reverse of 81330762 is 26703318
Previous prime number is 661
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty-one million three hundred thirty thousand seven hundred sixty-two
Scientific notation
8.1330762 × 10^7
Engineering notation
8.1330762 × 10^6
Prime Factorization
2 × 3 × 661 × 20507
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81330762
Product of the distinct prime numbers
The prime factorization of 81330762 is 2 × 3 × 661 × 20507.
Since it has a total of 4 prime factors.
3 , 10 , 3 , 74 , 615 , 107 , 4312 , 8419 , 66011 , 75640 , 563327 , 403682 , 1260638 , 9110784 , 47768124 , 15408127 , 456188105 , 273836327 , 7350196971 , 1742942819
n×2
162661524
n×3
243992286
n×4
325323048
n×5
406653810
n÷2
40665381
n÷3
27110254
n÷3
20332690.5
n÷5
16266152.4
n2
6614692847500644
n3
5.3797800968318E+23
n4
4.3754161466776E+31
n5
3.5585592927639E+39
2 √n
9018.3569456969
3 √n
433.26301120531
4 √n
94.965030120023
5 √n
38.198909797282
1 , 2 , 3 , 6 , 661 , 1322 , 1983 , 3966 , 20507 , 41014 , 61521 , 123042 , 13555127 , 27110254 , 40665381 , 81330762
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81330761
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81330762 can be divided by 16 positive divisors.
The sum of these divisors (counting 81330762) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110010000001001001010
3
Ternary
12200001000211110
4
Quaternary
10312100021022
5
Quinary
131310041022
6
Senary
12023111150
8
Octal
466201112
10
Decimal
81330762
12
Duodecimal
232a24b6
16
Hexadecimal
4d9024a
20
Vigesimal
15866i2
36
Base36
1cf77u
md5
700cbd9dd46fd427295f13f130996e18
sha1
af6ef723f393055557fefd8fd8c2b3ba72fdba31
sha256
4d054cd13c8065961b2721b672a3b05bb7c76f79e41ce155cece836bc81de935
sha512
c19ff30edef0395b881e72ad84d1cc431fa5c98e59f85121ab40ac1bb0deeff4635974f3007442674ede4ad1d383d96513c25fbbd08c81b1a1fc519b95e0bd2a
ripemd-160
ff04dad46a1db96e70fbfaabeb20fa92644fe4b0
Diameter
162661524
Circumference
511016248.82012
Area
2.0780670455461E+16
Volume
2.2534770173514E+24
Surface area
8.3122681821844E+16
Circumference
511016248.82012
Perimeter
325323048
Area
6614692847500644
Diagonal
115019066.65854
Surface area
39688157085003864
Volume
5.3797800968318E+23
Space diagonal
140869012.00229
Perimeter
243992286
Area
2.8642460220834E+15
Altitude
70434506.001146
Surface area
2.8642460220834E+15
Volume
6.3401316462703E+22
Height
38339688.886179