81330757 is an odd 8-digits composite number following 81330756
and preceding 81330758 . In scientific notation, it is written as 8.1330757 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 78572640 positive integers (up to 81330757) that are relatively prime to 81330757.
81330757 has 8 divisors, whose sum is 84127680
The reverse of 81330757 is 75703318
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million three hundred thirty thousand seven hundred fifty-seven
Scientific notation
8.1330757 × 10^7
Engineering notation
8.1330757 × 10^6
Prime Factorization
41 × 103 × 19259
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81330757
Product of the distinct prime numbers
The prime factorization of 81330757 is 41 × 103 × 19259.
Since it has a total of 3 prime factors.
8 , 7 , 52 , 12 , 474 , 938 , 803 , 8895 , 79375 , 1364 , 710593 , 128909 , 5479695 , 707732 , 80938557 , 38028749 , 425657953 , 165215145 , 7210785759 , 8157320659
n×2
162661514
n×3
243992271
n×4
325323028
n×5
406653785
n÷2
40665378.5
n÷3
27110252.333333
n÷3
20332689.25
n÷5
16266151.4
n2
6614692034193049
n3
5.3797791046279E+23
n4
4.3754150707217E+31
n5
3.55855819891E+39
2 √n
9018.3566684846
3 √n
433.26300232669
4 √n
94.965028660474
5 √n
38.198909327608
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
-81330756
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 81330757 can be divided by 8 positive divisors.
The sum of these divisors (counting 81330757) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010000001001000101
3
Ternary
12200001000211021
4
Quaternary
10312100021011
5
Quinary
131310041012
6
Senary
12023111141
8
Octal
466201105
10
Decimal
81330757
12
Duodecimal
232a24b1
16
Hexadecimal
4d90245
20
Vigesimal
15866hh
36
Base36
1cf77p
md5
e693e5960d9e75b8fadc4ace26fa4172
sha1
12b63dd493e0f5d509a4b3941104a7e78d0aaa07
sha256
a80aa388265393708855296c3fe44dff6f328e230a363bad6c4db342fcebfa9c
sha512
26ddd4bdde5218bedd08482d00291ab5499052f888da1372da3c6d54140defdab53a2da82c4b18fbb30f44533e79ed60357620fc84f11547d989bee9d629513b
ripemd-160
1d09bb837a3f5650aae375945ed2329c67ce1cd9
Diameter
162661514
Circumference
511016217.40419
Area
2.078066790038E+16
Volume
2.253476601738E+24
Surface area
8.3122671601519E+16
Circumference
511016217.40419
Perimeter
325323028
Area
6614692034193049
Diagonal
115019059.58747
Surface area
39688152205158294
Volume
5.3797791046279E+23
Space diagonal
140869003.34204
Perimeter
243992271
Area
2.8642456699109E+15
Altitude
70434501.671019
Surface area
2.8642456699109E+15
Volume
6.3401304769468E+22
Height
38339686.529157