206691491 is an odd 9-digits composite number following 206691490
and preceding 206691492 . In scientific notation, it is written as 2.06691491 × 10^8.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 194533152 positive integers (up to 206691491) that are relatively prime to 206691491.
206691491 has 4 divisors, whose sum is 218849832
The reverse of 206691491 is 194196602
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
two hundred six million six hundred ninety-one thousand four hundred ninety-one
Scientific notation
2.06691491 × 10^8
Engineering notation
2.06691491 × 10^6
Prime Factorization
17 × 12158323
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
206691491
Product of the distinct prime numbers
The prime factorization of 206691491 is 17 × 12158323.
Since it has a total of 2 prime factors.
3 , 1 , 5 , 38 , 200 , 906 , 3017 , 1786 , 74315 , 87937 , 714471 , 78660 , 4299388 , 3667857 , 78915316 , 75164697 , 974064022 , 405653254 , 6239496366 , 7716486987
n×2
413382982
n×3
620074473
n×4
826765964
n×5
1033457455
n÷2
103345745.5
n÷3
68897163.666667
n÷3
51672872.75
n÷5
41338298.2
n2
42721372451803081
n3
8.8301441696295E+24
n4
1.8251156641657E+33
n5
3.7723587787386E+41
2 √n
14376.769143309
3 √n
591.25414634146
4 √n
119.90316569344
5 √n
46.032495526263
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-206691490
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 206691491 can be divided by 4 positive divisors.
The sum of these divisors (counting 206691491) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100010100011101110010100011
3
Ternary
112101221000102102
4
Quaternary
30110131302203
5
Quinary
410403111431
6
Senary
32302041015
8
Octal
1424356243
10
Decimal
206691491
12
Duodecimal
5927916b
16
Hexadecimal
c51dca3
20
Vigesimal
34bg8eb
36
Base36
3f246b
md5
2ab0a61c17a68a737531a3b22286d169
sha1
37735950e0742daae82fc95774980db0225540ff
sha256
db38dd163110c02921b664bfa42338236d599b63ae13d3470ab86bd6675b17e4
sha512
4cd88810485421fc16f6b3d0147e6dcd1872303807ba984c51f5e4e3c5847618dc62189abe4f0c9f812595f058777927e7a85845e64dc5b3c234e436354e35f7
ripemd-160
0c23b7d05e032354670afa10155e105e369a2c4f
Diameter
413382982
Circumference
1298680939.3702
Area
1.3421314984586E+17
Volume
3.6987621404596E+25
Surface area
5.3685259938343E+17
Circumference
1298680939.3702
Perimeter
826765964
Area
42721372451803081
Diagonal
292305909.79932
Surface area
256328234710818486
Volume
8.8301441696295E+24
Space diagonal
358000163.90417
Perimeter
620074473
Area
1.8498896913899E+16
Altitude
179000081.95208
Surface area
1.8498896913899E+16
Volume
1.0406424702E+24
Height
97435303.266439