81336481 is an odd 8-digits composite number following 81336480
and preceding 81336482 . In scientific notation, it is written as 8.1336481 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 81197332 positive integers (up to 81336481) that are relatively prime to 81336481.
81336481 has 4 divisors, whose sum is 81475632
The reverse of 81336481 is 18463318
Previous prime number is 587
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million three hundred thirty-six thousand four hundred eighty-one
Scientific notation
8.1336481 × 10^7
Engineering notation
8.1336481 × 10^6
Prime Factorization
587 × 138563
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81336481
Product of the distinct prime numbers
The prime factorization of 81336481 is 587 × 138563.
Since it has a total of 2 prime factors.
9 , 7 , 83 , 50 , 458 , 275 , 3282 , 1691 , 56410 , 24246 , 13131 , 495237 , 7435153 , 9424536 , 15447894 , 71421479 , 261345069 , 748365035 , 5171213996 , 4738122418
n×2
162672962
n×3
244009443
n×4
325345924
n×5
406682405
n÷2
40668240.5
n÷3
27112160.333333
n÷3
20334120.25
n÷5
16267296.2
n2
6615623141463361
n3
5.3809150594879E+23
n4
4.3766469549866E+31
n5
3.5598106189797E+39
2 √n
9018.6740156189
3 √n
433.27316633409
4 √n
94.966699508927
5 √n
38.199446994808
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81336480
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81336481 can be divided by 4 positive divisors.
The sum of these divisors (counting 81336481) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110010001100010100001
3
Ternary
12200001022200021
4
Quaternary
10312101202201
5
Quinary
131310231411
6
Senary
12023153441
8
Octal
466214241
10
Decimal
81336481
12
Duodecimal
232a5881
16
Hexadecimal
4d918a1
20
Vigesimal
1587141
36
Base36
1cfbmp
md5
c7ac6415df0cd502a2c5bf5c2da7ab5e
sha1
7801f9e626a57b96c7475936153a7bf244182d13
sha256
3182cb155502cb232cf13737b33893977d14a29003d82a61d86be69ac3c677ad
sha512
2f28e4879c22379c5859a3a58952c39d0b05a5181fdde00a9e17dfa1f291fe736c3ad96bb139a359781a81052d4aa8221201aeb8a894874cb12be5c1691baf7d
ripemd-160
0c51278444bebfa99593d5332e76fbffc02da726
Diameter
162672962
Circumference
511052182.35689
Area
2.078359306014E+16
Volume
2.2539524293971E+24
Surface area
8.313437224056E+16
Circumference
511052182.35689
Perimeter
325345924
Area
6615623141463361
Diagonal
115027154.5459
Surface area
39693738848780166
Volume
5.3809150594879E+23
Space diagonal
140878917.60086
Perimeter
244009443
Area
2.8646488511857E+15
Altitude
70439458.80043
Surface area
2.8646488511857E+15
Volume
6.3414692125879E+22
Height
38342384.848634