81755061 is an odd 8-digits composite number following 81755060
and preceding 81755062 . In scientific notation, it is written as 8.1755061 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 53319168 positive integers (up to 81755061) that are relatively prime to 81755061.
81755061 has 16 divisors, whose sum is 111393600
The reverse of 81755061 is 16055718
Previous prime number is 229
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million seven hundred fifty-five thousand sixty-one
Scientific notation
8.1755061 × 10^7
Engineering notation
8.1755061 × 10^6
Prime Factorization
3 × 59 × 229 × 2017
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81755061
Product of the distinct prime numbers
The prime factorization of 81755061 is 3 × 59 × 229 × 2017.
Since it has a total of 4 prime factors.
5 , 8 , 36 , 25 , 931 , 227 , 3649 , 8767 , 63391 , 12170 , 746630 , 411232 , 5289688 , 4061569 , 56037497 , 72933141 , 247279496 , 99580318 , 7401472818 , 5770169864
n×2
163510122
n×3
245265183
n×4
327020244
n×5
408775305
n÷2
40877530.5
n÷3
27251687
n÷3
20438765.25
n÷5
16351012.2
n2
6683889999113721
n3
5.4644183459483E+23
n4
4.4674385520252E+31
n5
3.6523571133458E+39
2 √n
9041.8505296206
3 √n
434.01514278183
4 √n
95.088645639848
5 √n
38.238683290725
1 , 3 , 59 , 177 , 229 , 687 , 2017 , 6051 , 13511 , 40533 , 119003 , 357009 , 461893 , 1385679 , 27251687 , 81755061
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
-81755060
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 81755061 can be divided by 16 positive divisors.
The sum of these divisors (counting 81755061) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111110111101110110101
3
Ternary
12200211120212020
4
Quaternary
10313313232311
5
Quinary
131412130221
6
Senary
12040143353
8
Octal
467675665
10
Decimal
81755061
12
Duodecimal
23467b59
16
Hexadecimal
4df7bb5
20
Vigesimal
15aj7d1
36
Base36
1coalx
md5
00a76d8a7a4a9bb97c5c63a0469c4fa3
sha1
d264352ad92d90f09d2e35c496351777cca86637
sha256
32bcde18b7d3ea312c9eef298efff4270f61feb40c7f8930e62fc7ae56c1e6a3
sha512
e7d75d4b5f7bd54f9d48064a59e6d83d75a66304f71bcaff4cb0dbd0b8bfc9d7354c9faaba2cee780591fe44796f89124e7487cff65c21aae46539df9fb18e4f
ripemd-160
d90b149d40344697f97a678cc6a7a02bba174421
Diameter
163510122
Circumference
513682198.06277
Area
2.0998059718618E+16
Volume
2.2889302042363E+24
Surface area
8.3992238874472E+16
Circumference
513682198.06277
Perimeter
327020244
Area
6683889999113721
Diagonal
115619116.05884
Surface area
40103339994682326
Volume
5.4644183459483E+23
Space diagonal
141603919.42789
Perimeter
245265183
Area
2.8942092676666E+15
Altitude
70801959.713946
Surface area
2.8942092676666E+15
Volume
6.4398787794337E+22
Height
38539705.352947