81330752 is an even 8-digits composite number following 81330751
and preceding 81330753 . In scientific notation, it is written as 8.1330752 × 10^7.
The sum of its digits is 29. It has a total of 8 prime factors and 28 positive divisors.
There are 40488960 positive integers (up to 81330752) that are relatively prime to 81330752.
81330752 has 28 divisors, whose sum is 162091116
The reverse of 81330752 is 25703318
Previous prime number is 241
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million three hundred thirty thousand seven hundred fifty-two
Scientific notation
8.1330752 × 10^7
Engineering notation
8.1330752 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 241 × 5273
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
8
Total number of prime factors
rad
Radical
2541586
Product of the distinct prime numbers
The prime factorization of 81330752 is 2 × 2 × 2 × 2 × 2 × 2 × 241 × 5273.
Since it has a total of 8 prime factors.
6 , 8 , 83 , 73 , 875 , 771 , 4453 , 4629 , 13811 , 64742 , 247700 , 245958 , 8436376 , 2786884 , 66698524 , 44420134 , 90406783 , 485653055 , 2813128287 , 176898338
n×2
162661504
n×3
243992256
n×4
325323008
n×5
406653760
n÷2
40665376
n÷3
27110250.666667
n÷3
20332688
n÷5
16266150.4
n2
6614691220885504
n3
5.3797781124242E+23
n4
4.375413994766E+31
n5
3.5585571050564E+39
2 √n
9018.3563912722
3 √n
433.26299344807
4 √n
94.965027200924
5 √n
38.198908857935
1 , 2 , 4 , 8 , 16 , 32 , 64 , 241 , 482 , 964 , 1928 , 3856 , 5273 , 7712 , 10546 , 15424 , 21092 , 42184 , 84368 , 168736 , 337472 , 1270793 , 2541586 , 5083172 , 10166344 , 20332688 , 40665376 , 81330752
28 divisors
τ
Total Divisors
28
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81330751
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.035714285714286
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
28
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81330752 can be divided by 28 positive divisors.
The sum of these divisors (counting 81330752) is 1, the average is 0.035714285714286.
Base
System
Value
2
Binary
100110110010000001001000000
3
Ternary
12200001000211002
4
Quaternary
10312100021000
5
Quinary
131310041002
6
Senary
12023111132
8
Octal
466201100
10
Decimal
81330752
12
Duodecimal
232a24a8
16
Hexadecimal
4d90240
20
Vigesimal
15866hc
36
Base36
1cf77k
md5
ade1db0b4026a126f5b7de6f03d82c8e
sha1
2f2c7dac1ce9120ff8547bfb524ee9583f7d901b
sha256
ebd9b7bcf7d223f219d06c6818d4519c40c45ca086534f6f792c85fdb7ccb949
sha512
8635108218e06b13574dc0be97fed1e762baa4c3e4a911b113223680f693956d8b32fc328083604583ea2f53f02e0c95d5d16bf72df5a8f9fc2ac5ba7452b16c
ripemd-160
8fdcc2dcd975cc938d87393f85c5521a1afe521f
Diameter
162661504
Circumference
511016185.98827
Area
2.0780665345299E+16
Volume
2.2534761861247E+24
Surface area
8.3122661381195E+16
Circumference
511016185.98827
Perimeter
325323008
Area
6614691220885504
Diagonal
115019052.5164
Surface area
39688147325313024
Volume
5.3797781124242E+23
Space diagonal
140868994.68178
Perimeter
243992256
Area
2.8642453177384E+15
Altitude
70434497.340892
Surface area
2.8642453177384E+15
Volume
6.3401293076235E+22
Height
38339684.172134