81076871 is an odd 8-digits composite number following 81076870
and preceding 81076872 . In scientific notation, it is written as 8.1076871 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 80820792 positive integers (up to 81076871) that are relatively prime to 81076871.
81076871 has 4 divisors, whose sum is 81332952
The reverse of 81076871 is 17867018
Previous prime number is 317
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million seventy-six thousand eight hundred seventy-one
Scientific notation
8.1076871 × 10^7
Engineering notation
8.1076871 × 10^6
Prime Factorization
317 × 255763
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81076871
Product of the distinct prime numbers
The prime factorization of 81076871 is 317 × 255763.
Since it has a total of 2 prime factors.
4 , 3 , 100 , 68 , 622 , 944 , 8977 , 1918 , 47298 , 20127 , 762891 , 144832 , 1133480 , 9579639 , 39346955 , 1462388 , 543803337 , 799517065 , 8883441705 , 7285867357
n×2
162153742
n×3
243230613
n×4
324307484
n×5
405384355
n÷2
40538435.5
n÷3
27025623.666667
n÷3
20269217.75
n÷5
16215374.2
n2
6573459011150641
n3
5.3295548827085E+23
n4
4.3210363371278E+31
n5
3.5033610569162E+39
2 √n
9004.2695983628
3 √n
432.81170086174
4 √n
94.890829896059
5 √n
38.175030782541
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
-81076870
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 81076871 can be divided by 4 positive divisors.
The sum of these divisors (counting 81076871) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101010010001010000111
3
Ternary
12122120010120002
4
Quaternary
10311102022013
5
Quinary
131223424441
6
Senary
12013431515
8
Octal
465221207
10
Decimal
81076871
12
Duodecimal
2319b59b
16
Hexadecimal
4d52287
20
Vigesimal
156ec3b
36
Base36
1c9rbb
md5
15683eb0b159efdb30b5fe887a0110bb
sha1
c9ea1cec148c8fa30bc91ca64247c3398d7ee0c4
sha256
2c1d19d340199bccd8b3b22f27b953aa7ca0cc0758ddd0a868f2be9699ce587d
sha512
033742044f69a6e8de452b725dbbedf8b67592b852e2b4f78a1d4c70e14181aee643cd54fb1c32402f2083a201c665c667089044a14c88d82a8d796e72008fb6
ripemd-160
3f67afa90c8c619ef41773bba1a90ce6e5502cd1
Diameter
162153742
Circumference
509421004.61929
Area
2.0651130538104E+16
Volume
2.2324387288561E+24
Surface area
8.2604522152418E+16
Circumference
509421004.61929
Perimeter
324307484
Area
6573459011150641
Diagonal
114660010.56297
Surface area
39440754066903846
Volume
5.3295548827085E+23
Space diagonal
140429259.89071
Perimeter
243230613
Area
2.8463912471961E+15
Altitude
70214629.945354
Surface area
2.8463912471961E+15
Volume
6.2809406637817E+22
Height
38220003.520991