81301943 is an odd 8-digits composite number following 81301942
and preceding 81301944 . In scientific notation, it is written as 8.1301943 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 81087048 positive integers (up to 81301943) that are relatively prime to 81301943.
81301943 has 4 divisors, whose sum is 81516840
The reverse of 81301943 is 34910318
Previous prime number is 379
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million three hundred one thousand nine hundred forty-three
Scientific notation
8.1301943 × 10^7
Engineering notation
8.1301943 × 10^6
Prime Factorization
379 × 214517
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81301943
Product of the distinct prime numbers
The prime factorization of 81301943 is 379 × 214517.
Since it has a total of 2 prime factors.
1 , 3 , 68 , 68 , 9 , 205 , 4521 , 6609 , 44546 , 94531 , 778635 , 439227 , 7730883 , 4969486 , 99468950 , 44430224 , 371787695 , 308401548 , 6820260765 , 1920687957
n×2
162603886
n×3
243905829
n×4
325207772
n×5
406509715
n÷2
40650971.5
n÷3
27100647.666667
n÷3
20325485.75
n÷5
16260388.6
n2
6610005935575249
n3
5.374063258038E+23
n4
4.369217846834E+31
n5
3.5522590033788E+39
2 √n
9016.759007537
3 √n
433.21183056343
4 √n
94.956616449498
5 √n
38.196202308947
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
-81301942
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 81301943 can be divided by 4 positive divisors.
The sum of these divisors (counting 81301943) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110001001000110110111
3
Ternary
12122222120022002
4
Quaternary
10312021012313
5
Quinary
131303130233
6
Senary
12022325515
8
Octal
466110667
10
Decimal
81301943
12
Duodecimal
2328989b
16
Hexadecimal
4d891b7
20
Vigesimal
1582eh3
36
Base36
1cekzb
md5
df3d4d6c7f980d929eb0ec55a5f9334d
sha1
5828c12c5e9b2b1dd064afebd323dd9b4753fa4c
sha256
803827f857c5d500e257b4c04724fb822b18e216ae9775594fae5a3621e38ef7
sha512
f9f04df1d09ba0dcefcfe7d54f24ad7186a91f1abb0df90e9b9a6b7f5200b113d8ff3d037b5310366bdf6863b1de1a249b9edc5560ab0db6e8a0b78fadf9a719
ripemd-160
85cc5e57060482cbd6de1575ddeafad9a7d00f02
Diameter
162603886
Circumference
510835173.70275
Area
2.0765946087388E+16
Volume
2.2510823535172E+24
Surface area
8.3063784349553E+16
Circumference
510835173.70275
Perimeter
325207772
Area
6610005935575249
Diagonal
114978310.43788
Surface area
39660035613451494
Volume
5.374063258038E+23
Space diagonal
140819096.03007
Perimeter
243905829
Area
2.862216529687E+15
Altitude
70409548.015034
Surface area
2.862216529687E+15
Volume
6.3333942871402E+22
Height
38326103.479295