81276871 is an odd 8-digits composite number following 81276870
and preceding 81276872 . In scientific notation, it is written as 8.1276871 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 71762592 positive integers (up to 81276871) that are relatively prime to 81276871.
81276871 has 8 divisors, whose sum is 91334880
The reverse of 81276871 is 17867218
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighty-one million two hundred seventy-six thousand eight hundred seventy-one
Scientific notation
8.1276871 × 10^7
Engineering notation
8.1276871 × 10^6
Prime Factorization
23 × 13 × 271829
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81276871
Product of the distinct prime numbers
The prime factorization of 81276871 is 23 × 13 × 271829.
Since it has a total of 3 prime factors.
4 , 4 , 67 , 98 , 55 , 635 , 7771 , 5395 , 77554 , 56817 , 161685 , 787541 , 2345323 , 9598316 , 47952386 , 18393513 , 123018885 , 465659342 , 1386224066 , 7682539092
n×2
162553742
n×3
243830613
n×4
325107484
n×5
406384355
n÷2
40638435.5
n÷3
27092290.333333
n÷3
20319217.75
n÷5
16255374.2
n2
6605929759550641
n3
5.3690930090206E+23
n4
4.3638307988117E+31
n5
3.5467851290084E+39
2 √n
9015.3686003402
3 √n
433.16729450726
4 √n
94.949294891222
5 √n
38.19384621929
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81276870
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81276871 can be divided by 8 positive divisors.
The sum of these divisors (counting 81276871) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110000010111111000111
3
Ternary
12122221021220111
4
Quaternary
10312002333013
5
Quinary
131301324441
6
Senary
12022013451
8
Octal
466027707
10
Decimal
81276871
12
Duodecimal
23277287
16
Hexadecimal
4d82fc7
20
Vigesimal
157jc3b
36
Base36
1ce1mv
md5
696d307160bfa05aa2a5c186d2141b0b
sha1
4b4f457b963c137f5474fdd0225584730b709e85
sha256
1fbd29560e3492d1a5277bf97a2af2304d760ba97ad619a1d14d6c9b24b8d672
sha512
c82bb62c7e2db829ba60768b82880fb8222ddce6e0bbff2f33dcaac794878186d2b94beeb546b94f34b841173889c2989b77a0324dccf77268cc4d03dadcf6d0
ripemd-160
e6f59eeb99b31afa48f839c09953f7d3d95cacf8
Diameter
162553742
Circumference
510677641.68073
Area
2.0753140402734E+16
Volume
2.2490004204773E+24
Surface area
8.3012561610938E+16
Circumference
510677641.68073
Perimeter
325107484
Area
6605929759550641
Diagonal
114942853.27545
Surface area
39635578557303846
Volume
5.3690930090206E+23
Space diagonal
140775670.05222
Perimeter
243830613
Area
2.8604514936932E+15
Altitude
70387835.026111
Surface area
2.8604514936932E+15
Volume
6.3275367924996E+22
Height
38314284.42515