81496247 is an odd 8-digits composite number following 81496246
and preceding 81496248 . In scientific notation, it is written as 8.1496247 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 69853920 positive integers (up to 81496247) that are relatively prime to 81496247.
81496247 has 4 divisors, whose sum is 93138576
The reverse of 81496247 is 74269418
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-one million four hundred ninety-six thousand two hundred forty-seven
Scientific notation
8.1496247 × 10^7
Engineering notation
8.1496247 × 10^6
Prime Factorization
7 × 11642321
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81496247
Product of the distinct prime numbers
The prime factorization of 81496247 is 7 × 11642321.
Since it has a total of 2 prime factors.
7 , 4 , 67 , 24 , 536 , 746 , 8443 , 5728 , 33343 , 54783 , 654904 , 405907 , 992765 , 9765143 , 47327643 , 27886387 , 278696463 , 919125079 , 5138343424 , 8358112132
n×2
162992494
n×3
244488741
n×4
325984988
n×5
407481235
n÷2
40748123.5
n÷3
27165415.666667
n÷3
20374061.75
n÷5
16299249.4
n2
6641638275085009
n3
5.4126859335098E+23
n4
4.4111358977074E+31
n5
3.5949102067013E+39
2 √n
9027.5271807954
3 √n
433.55666784817
4 √n
95.013300020552
5 √n
38.214441947348
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
-81496246
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 81496247 can be divided by 4 positive divisors.
The sum of these divisors (counting 81496247) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110111000100010110111
3
Ternary
12200100102211112
4
Quaternary
10312320202313
5
Quinary
131330334442
6
Senary
12030425235
8
Octal
466704267
10
Decimal
81496247
12
Duodecimal
2336221b
16
Hexadecimal
4db88b7
20
Vigesimal
15970c7
36
Base36
1ciqwn
md5
115fb51de4ce616bb6c787ea75b2116a
sha1
fa31b53f1b5fbb13b74f90a4504975efefc72e21
sha256
642afefb56534c061c186b600179119041561be9ea66f4ecb005c58227300e1c
sha512
81b437467b1d4ed4d1c65653d9142aadd444484b93c2679fb125f943838dad945f502c449839013cf4e810e78720e826d20aede97aea39c41441013e7a554e66
ripemd-160
e6ffe5c0ccaa493f2b2ea7aea7eb41410ff70a49
Diameter
162992494
Circumference
512056021.74068
Area
2.0865322012808E+16
Volume
2.2672605819871E+24
Surface area
8.3461288051231E+16
Circumference
512056021.74068
Perimeter
325984988
Area
6641638275085009
Diagonal
115253097.78991
Surface area
39849829650510054
Volume
5.4126859335098E+23
Space diagonal
141155640.43018
Perimeter
244488741
Area
2.8759137344853E+15
Altitude
70577820.215091
Surface area
2.8759137344853E+15
Volume
6.3789115466964E+22
Height
38417699.263303