81741808 is an even 8-digits composite number following 81741807
and preceding 81741809 . In scientific notation, it is written as 8.1741808 × 10^7.
The sum of its digits is 37. It has a total of 6 prime factors and 20 positive divisors.
There are 40633280 positive integers (up to 81741808) that are relatively prime to 81741808.
81741808 has 20 divisors, whose sum is 159295608
The reverse of 81741808 is 80814718
Previous prime number is 173
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty-one million seven hundred forty-one thousand eight hundred eight
Scientific notation
8.1741808 × 10^7
Engineering notation
8.1741808 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 173 × 29531
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
10217726
Product of the distinct prime numbers
The prime factorization of 81741808 is 2 × 2 × 2 × 2 × 173 × 29531.
Since it has a total of 6 prime factors.
3 , 8 , 52 , 96 , 900 , 679 , 2705 , 9970 , 3335 , 86591 , 734135 , 852586 , 265305 , 6283183 , 97975477 , 8654749 , 223952668 , 212740252 , 3256343910 , 5272365319
n×2
163483616
n×3
245225424
n×4
326967232
n×5
408709040
n÷2
40870904
n÷3
27247269.333333
n÷3
20435452
n÷5
16348361.6
n2
6681723175108864
n3
5.461761328889E+23
n4
4.4645424588787E+31
n5
3.6493977248151E+39
2 √n
9041.1176300278
3 √n
433.99168933664
4 √n
95.084791791473
5 √n
38.237443465013
1 , 2 , 4 , 8 , 16 , 173 , 346 , 692 , 1384 , 2768 , 29531 , 59062 , 118124 , 236248 , 472496 , 5108863 , 10217726 , 20435452 , 40870904 , 81741808
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81741807
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81741808 can be divided by 20 positive divisors.
The sum of these divisors (counting 81741808) is 1, the average is 0.05.
Base
System
Value
2
Binary
100110111110100011111110000
3
Ternary
12200210220200101
4
Quaternary
10313310133300
5
Quinary
131411214213
6
Senary
12040002144
8
Octal
467643760
10
Decimal
81741808
12
Duodecimal
23460354
16
Hexadecimal
4df47f0
20
Vigesimal
15ahea8
36
Base36
1co0ds
md5
e83b313e9f68dfeb24093448a42e3b07
sha1
a43608eb64202848d53ff58ea55f6da64959b449
sha256
1c13697e28bcce65f06e1abc02acdb48da9b571d0f36cd164f733fc6e7247f56
sha512
82d740d31461290a820b1737cb0c3a51e5fa46234a04f50319016a892985749e754eabf37fd9e1fc4049d938504176fe214c1df939e142b220e062feef62e26d
ripemd-160
2512f42aff52f8fee72fd8ad1997e01236981013
Diameter
163483616
Circumference
513598927.00789
Area
2.0991252440243E+16
Volume
2.2878172355331E+24
Surface area
8.3965009760971E+16
Circumference
513598927.00789
Perimeter
326967232
Area
6681723175108864
Diagonal
115600373.4865
Surface area
40090339050653184
Volume
5.461761328889E+23
Space diagonal
141580964.55854
Perimeter
245225424
Area
2.8932710053497E+15
Altitude
70790482.27927
Surface area
2.8932710053497E+15
Volume
6.4367474547998E+22
Height
38533457.828833