81738186 is an even 8-digits composite number following 81738185
and preceding 81738187 . In scientific notation, it is written as 8.1738186 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 27246060 positive integers (up to 81738186) that are relatively prime to 81738186.
81738186 has 8 divisors, whose sum is 163476384
The reverse of 81738186 is 68183718
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 seven hundred thirty-eight thousand one hundred eighty-six
Scientific notation
8.1738186 × 10^7
Engineering notation
8.1738186 × 10^6
Prime Factorization
2 × 3 × 13623031
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81738186
Product of the distinct prime numbers
The prime factorization of 81738186 is 2 × 3 × 13623031.
Since it has a total of 3 prime factors.
8 , 9 , 69 , 3 , 654 , 559 , 3252 , 3059 , 37969 , 58606 , 165296 , 535205 , 9863351 , 689000 , 85422369 , 16477396 , 705537154 , 879055464 , 1720022835 , 8127495270
n×2
163476372
n×3
245214558
n×4
326952744
n×5
408690930
n÷2
40869093
n÷3
27246062
n÷3
20434546.5
n÷5
16347637.2
n2
6681131050570596
n3
5.4610353250191E+23
n4
4.4637512114899E+31
n5
3.6485892678248E+39
2 √n
9040.9173207148
3 √n
433.98527914845
4 √n
95.083738466232
5 √n
38.237104596866
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81738185
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81738186 can be divided by 8 positive divisors.
The sum of these divisors (counting 81738186) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111110011100111001010
3
Ternary
12200210201201020
4
Quaternary
10313303213022
5
Quinary
131411110221
6
Senary
12035533310
8
Octal
467634712
10
Decimal
81738186
12
Duodecimal
2345a236
16
Hexadecimal
4df39ca
20
Vigesimal
15ah596
36
Base36
1cnxl6
md5
b855d739532a3071c41e17f49669f888
sha1
5f3235ea56dc65238ab40f6ccaef26424c1c1a66
sha256
6d1f9a457097a5084b7993d82c4ed08c586adb0d7df10d1f2455ee9f9f5a6e52
sha512
9a66f91d3923285f70b444fdea247f365e3ba1317f6325a5149f915d71276097cb2f901cdecfda5c073fca58a61c72845028b0f3b6508b6c4ba22391d148efd6
ripemd-160
5c389203732778b9a2f0335459bf43e8c1fa7ed5
Diameter
163476372
Circumference
513576169.31071
Area
2.0989392226143E+16
Volume
2.2875131277433E+24
Surface area
8.3957568904573E+16
Circumference
513576169.31071
Perimeter
326952744
Area
6681131050570596
Diagonal
115595251.20497
Surface area
40086786303423576
Volume
5.4610353250191E+23
Space diagonal
141574691.07052
Perimeter
245214558
Area
2.8930146079036E+15
Altitude
70787345.535258
Surface area
2.8930146079036E+15
Volume
6.4358918510339E+22
Height
38531750.401658