81497453 is an odd 8-digits composite number following 81497452
and preceding 81497454 . In scientific notation, it is written as 8.1497453 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 78687168 positive integers (up to 81497453) that are relatively prime to 81497453.
81497453 has 4 divisors, whose sum is 84307740
The reverse of 81497453 is 35479418
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-one million four hundred ninety-seven thousand four hundred fifty-three
Scientific notation
8.1497453 × 10^7
Engineering notation
8.1497453 × 10^6
Prime Factorization
29 × 2810257
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81497453
Product of the distinct prime numbers
The prime factorization of 81497453 is 29 × 2810257.
Since it has a total of 2 prime factors.
7 , 7 , 23 , 95 , 648 , 945 , 7465 , 4163 , 28278 , 11470 , 24928 , 617119 , 276183 , 2600731 , 64127595 , 99401286 , 221265245 , 904348851 , 5612819884 , 4744468866
n×2
162994906
n×3
244492359
n×4
325989812
n×5
407487265
n÷2
40748726.5
n÷3
27165817.666667
n÷3
20374363.25
n÷5
16299490.6
n2
6641834845487209
n3
5.4129262315386E+23
n4
4.4113970114728E+31
n5
3.5951762060685E+39
2 √n
9027.5939762486
3 √n
433.55880646102
4 √n
95.013651525708
5 √n
38.214555047879
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
-81497452
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 81497453 can be divided by 4 positive divisors.
The sum of these divisors (counting 81497453) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110111000110101101101
3
Ternary
12200100111111012
4
Quaternary
10312320311231
5
Quinary
131330404303
6
Senary
12030435005
8
Octal
466706555
10
Decimal
81497453
12
Duodecimal
23362a65
16
Hexadecimal
4db8d6d
20
Vigesimal
15973cd
36
Base36
1ciru5
md5
34ccc6815580bdf8d5c4db11126ca2c4
sha1
2405ee93230f36261dbfad807db1cb61f993f5e5
sha256
c66e804e99ebc58db8c59de2a2ea1f051f6649c0dffaf7dd661c289898cedf3c
sha512
5c9c9431cb3f508092326098edfb14481e7487015eb50c10e1dc2d359152cae2c0ac701fa15a291d34902d66b47e315fceec7f1ebd045c1ecba8c4cf5be8e66c
ripemd-160
0955a284df623064f349bfbcb082b96d00e698da
Diameter
162994906
Circumference
512063599.26216
Area
2.0865939556939E+16
Volume
2.26736123779E+24
Surface area
8.3463758227757E+16
Circumference
512063599.26216
Perimeter
325989812
Area
6641834845487209
Diagonal
115254803.33146
Surface area
39851009072923254
Volume
5.4129262315386E+23
Space diagonal
141157729.28346
Perimeter
244492359
Area
2.8759988519663E+15
Altitude
70578864.641728
Surface area
2.8759988519663E+15
Volume
6.3791947406391E+22
Height
38418267.777155