81738650 is an even 8-digits composite number following 81738649
and preceding 81738651 . In scientific notation, it is written as 8.1738650 × 10^7.
The sum of its digits is 38. It has a total of 5 prime factors and 32 positive divisors.
There are 27907200 positive integers (up to 81738650) that are relatively prime to 81738650.
81738650 has 32 divisors, whose sum is 151968960
The reverse of 81738650 is 05683718
Previous prime number is 409
Is Prime? no Number parity even Number length 8 Sum of Digits 38 Digital Root 2
Name
eighty-one million seven hundred thirty-eight thousand six hundred fifty
Scientific notation
8.1738650 × 10^7
Engineering notation
8.1738650 × 10^6
Prime Factorization
2 × 5 × 35 × 409 × 571
Composite number
ω Distinct Factors
5 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
81738650 Product of the distinct prime numbers
The prime factorization of 81738650 is 2 × 5 × 35 × 409 × 571.
Since it has a total of 5 prime factors.
9 , 5 , 64 , 98 , 225 , 170 , 2009 , 4632 , 26756 , 57501 , 406775 , 365329 , 5088482 , 5902523 , 96246421 , 87145889 , 23439155 , 750219507 , 2842418998 , 2835994568
n×2
163477300
n×3
245215950
n×4
326954600
n×5
408693250
n÷2
40869325
n÷3
27246216.666667
n÷3
20434662.5
n÷5
16347730
n2
6681206903822500
n3
5.4611283268913E+23
n4
4.4638525691685E+31
n5
3.6486928280287E+39
2 √n9040.9429817912
3 √n433.98610034271
4 √n95.08387340549
5 √n38.237148008586
1 , 2 , 5 , 10 , 35 , 70 , 175 , 350 , 409 , 571 , 818 , 1142 , 2045 , 2855 , 4090 , 5710 , 14315 , 19985 , 28630 , 39970 , 71575 , 99925 , 143150 , 199850 , 233539 , 467078 , 1167695 , 2335390 , 8173865 , 16347730 , 40869325 , 81738650
32 divisors
τ Total Divisors
32 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-81738649 Sum of the proper positive divisors of n
A Arithmetic Mean
0.03125 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
32 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81738650 can be divided by 32 positive divisors.
The sum of these divisors (counting 81738650) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110111110011101110011010
3
Ternary
12200210202100102
4
Quaternary
10313303232122
5
Quinary
131411114100
6
Senary
12035535402
8
Octal
467635632
10
Decimal
81738650
12
Duodecimal
2345a562
16
Hexadecimal
4df3b9a
20
Vigesimal
15ah6ca
36
Base36
1cnxy2
md5
5b13dec4eb9fec28f254b58d7c58fec0
sha1
5e425450af5951f6caa2afe4e6602232903007c9
sha256
0ba2626f623dc3b1f5ce7f55360944e5a14d3c8fcd6a8405c14dc68ff54703b7
sha512
6325448b532909700bc0f810730ab23ac28f375d4b94d7c419f20c843b5af280e9815e4c407ddab7d14b257321715db80238e48865c87a409e44a18ebc25b298
ripemd-160
8d845ade2c59429d46ac472430798fd4510e5b25
Diameter
163477300
Circumference
513579084.70869
Area
2.0989630526162E+16
Volume
2.2875520842764E+24
Surface area
8.3958522104649E+16
Circumference
513579084.70869
Perimeter
326954600
Area
6681206903822500
Diagonal
115595907.40007
Surface area
40087241422935000
Volume
5.4611283268913E+23
Space diagonal
141575494.74209
Perimeter
245215950
Area
2.8930474533251E+15
Altitude
70787747.371045
Surface area
2.8930474533251E+15
Volume
6.4360014547913E+22
Height
38531969.133356