81497358 is an even 8-digits composite number following 81497357
and preceding 81497359 . In scientific notation, it is written as 8.1497358 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 26652912 positive integers (up to 81497358) that are relatively prime to 81497358.
81497358 has 16 divisors, whose sum is 138393360
The reverse of 81497358 is 85379418
Previous prime number is 53
Is Prime? no
Number parity even
Number length 8
Sum of Digits 45
Digital Root 9
Name
eighty-one million four hundred ninety-seven thousand three hundred fifty-eight
Scientific notation
8.1497358 × 10^7
Engineering notation
8.1497358 × 10^6
Prime Factorization
2 × 9 × 53 × 85427
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81497358
Product of the distinct prime numbers
The prime factorization of 81497358 is 2 × 9 × 53 × 85427.
Since it has a total of 4 prime factors.
5 , 6 , 18 , 33 , 390 , 163 , 6608 , 436 , 76078 , 4762 , 134130 , 465702 , 6168918 , 846975 , 37068622 , 84269858 , 551671936 , 521269487 , 2289136333 , 3103714615
n×2
162994716
n×3
244492074
n×4
325989432
n×5
407486790
n÷2
40748679
n÷3
27165786
n÷3
20374339.5
n÷5
16299471.6
n2
6641819360980164
n3
5.4129073023313E+23
n4
4.4113764423891E+31
n5
3.5951552519815E+39
2 √n
9027.5887146015
3 √n
433.55863799726
4 √n
95.013623836803
5 √n
38.214546138682
1 , 2 , 9 , 18 , 53 , 106 , 477 , 954 , 85427 , 170854 , 768843 , 1537686 , 4527631 , 9055262 , 40748679 , 81497358
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
-81497357
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 81497358 can be divided by 16 positive divisors.
The sum of these divisors (counting 81497358) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110111000110100001110
3
Ternary
12200100111100200
4
Quaternary
10312320310032
5
Quinary
131330403413
6
Senary
12030434330
8
Octal
466706416
10
Decimal
81497358
12
Duodecimal
233629a6
16
Hexadecimal
4db8d0e
20
Vigesimal
159737i
36
Base36
1cirri
md5
98faf67900de04582962af96b18f0055
sha1
2d6d35ae8321d6136ea341f5c9f39129a4e97f04
sha256
20b2e8cd32f6834d359b8bb60b61e013cc446a8a90ac6acd8c72ec3307ae0329
sha512
b0891549b4379fe1bd9c8e04cb0da05954c4870dea559a71357d65f479525562e07abb9848a6463a04c39e71c9d1c7fd06046a30367f7b90794045bdf920d9c0
ripemd-160
defe495f0a6007dd0bf9362f79173e43a0cb763a
Diameter
162994716
Circumference
512063002.35955
Area
2.0865890910926E+16
Volume
2.2673533087422E+24
Surface area
8.3463563643703E+16
Circumference
512063002.35955
Perimeter
325989432
Area
6641819360980164
Diagonal
115254668.98118
Surface area
39850916165880984
Volume
5.4129073023313E+23
Space diagonal
141157564.73863
Perimeter
244492074
Area
2.8759921469781E+15
Altitude
70578782.369315
Surface area
2.8759921469781E+15
Volume
6.3791724323544E+22
Height
38418222.993725