81497443 is an odd 8-digits composite number following 81497442
and preceding 81497444 . In scientific notation, it is written as 8.1497443 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 81432640 positive integers (up to 81497443) that are relatively prime to 81497443.
81497443 has 4 divisors, whose sum is 81562248
The reverse of 81497443 is 34479418
Previous prime number is 1283
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighty-one million four hundred ninety-seven thousand four hundred forty-three
Scientific notation
8.1497443 × 10^7
Engineering notation
8.1497443 × 10^6
Prime Factorization
1283 × 63521
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81497443
Product of the distinct prime numbers
The prime factorization of 81497443 is 1283 × 63521.
Since it has a total of 2 prime factors.
9 , 4 , 84 , 51 , 769 , 536 , 1256 , 6237 , 98694 , 54632 , 889328 , 745307 , 4119869 , 8038783 , 26491300 , 63165535 , 146937454 , 835825732 , 4361892408 , 9537300236
n×2
162994886
n×3
244492329
n×4
325989772
n×5
407487215
n÷2
40748721.5
n÷3
27165814.333333
n÷3
20374360.75
n÷5
16299488.6
n2
6641833215538249
n3
5.4129242389884E+23
n4
4.4113948463027E+31
n5
3.5951740003705E+39
2 √n
9027.5934223912
3 √n
433.558788728
4 √n
95.013648611087
5 √n
38.21455411007
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
-81497442
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 81497443 can be divided by 4 positive divisors.
The sum of these divisors (counting 81497443) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110111000110101100011
3
Ternary
12200100111110211
4
Quaternary
10312320311203
5
Quinary
131330404233
6
Senary
12030434551
8
Octal
466706543
10
Decimal
81497443
12
Duodecimal
23362a57
16
Hexadecimal
4db8d63
20
Vigesimal
15973c3
36
Base36
1cirtv
md5
e9f581ff8d9acea5aeffed685aeab433
sha1
3cc9971ac222eea26c47b6bc40ca8b8d4b880265
sha256
f17fecd2a5eeca381a1a9f159e9642b32e5e5a82c293db49ab4a9d2ac8c4b858
sha512
d7bc8287aa57db71fce220d23007c787b2a9559c17180bd2b99affbf52003267cdfb25a64a9542f25bf4f7a5fb36dfb335f109ae7d97dcd8a8caee37e290db0b
ripemd-160
55722543d80452ce5f0142148c884c777bc70d9b
Diameter
162994886
Circumference
512063536.43031
Area
2.0865934436304E+16
Volume
2.2673604031525E+24
Surface area
8.3463737745215E+16
Circumference
512063536.43031
Perimeter
325989772
Area
6641833215538249
Diagonal
115254789.18933
Surface area
39850999293229494
Volume
5.4129242389884E+23
Space diagonal
141157711.96295
Perimeter
244492329
Area
2.8759981461777E+15
Altitude
70578855.981474
Surface area
2.8759981461777E+15
Volume
6.3791923923962E+22
Height
38418263.063109