81497256 is an even 8-digits composite number following 81497255
and preceding 81497257 . In scientific notation, it is written as 8.1497256 × 10^7.
The sum of its digits is 42. It has a total of 5 prime factors and 16 positive divisors.
There are 27165744 positive integers (up to 81497256) that are relatively prime to 81497256.
81497256 has 16 divisors, whose sum is 203743200
The reverse of 81497256 is 65279418
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-one million four hundred ninety-seven thousand two hundred fifty-six
Scientific notation
8.1497256 × 10^7
Engineering notation
8.1497256 × 10^6
Prime Factorization
2 × 2 × 2 × 3 × 3395719
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20374314
Product of the distinct prime numbers
The prime factorization of 81497256 is 2 × 2 × 2 × 3 × 3395719.
Since it has a total of 5 prime factors.
3 , 5 , 88 , 24 , 411 , 419 , 9167 , 3204 , 96317 , 61167 , 32923 , 722524 , 2566748 , 8151876 , 45636566 , 47471558 , 361311335 , 37176296 , 3909301938 , 2925268345
n×2
162994512
n×3
244491768
n×4
325989024
n×5
407486280
n÷2
40748628
n÷3
27165752
n÷3
20374314
n÷5
16299451.2
n2
6641802735529536
n3
5.4128869783895E+23
n4
4.4113543577688E+31
n5
3.595132754018E+39
2 √n
9027.5830652506
3 √n
433.55845712023
4 √n
95.013594107636
5 √n
38.214536573008
1 , 2 , 3 , 4 , 6 , 8 , 12 , 24 , 3395719 , 6791438 , 10187157 , 13582876 , 20374314 , 27165752 , 40748628 , 81497256
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81497255
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81497256 can be divided by 16 positive divisors.
The sum of these divisors (counting 81497256) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110111000110010101000
3
Ternary
12200100111012220
4
Quaternary
10312320302220
5
Quinary
131330403011
6
Senary
12030434040
8
Octal
466706250
10
Decimal
81497256
12
Duodecimal
23362920
16
Hexadecimal
4db8ca8
20
Vigesimal
159732g
36
Base36
1ciroo
md5
4dc28f27b972f086ae9f975b8daf3cb3
sha1
4f7664953beed4ebb311fcf23e138601bafb084d
sha256
b3c22996a28eb671ba2ffc5f296b97da62ce54293470fc34b72a4ff1a06e3d24
sha512
00cec8d20e5b7e26b9db39e5a07b2644c3f3f674da3158768f42a86587cd4ae0ba427ced3dc988a839498dd88ef9ba767b2435ac1346eff2801e2f93457b12ed
ripemd-160
cc48f463c75f8303f9d3cf7414f1673815f687ad
Diameter
162994512
Circumference
512062361.47465
Area
2.0865838680532E+16
Volume
2.2673447954694E+24
Surface area
8.3463354722129E+16
Circumference
512062361.47465
Perimeter
325989024
Area
6641802735529536
Diagonal
115254524.73139
Surface area
39850816413177216
Volume
5.4128869783895E+23
Space diagonal
141157388.06945
Perimeter
244491768
Area
2.8759849479468E+15
Altitude
70578694.034724
Surface area
2.8759849479468E+15
Volume
6.3791484803593E+22
Height
38418174.910464