206831209 is an odd 9-digits composite number following 206831208
and preceding 206831210 . In scientific notation, it is written as 2.06831209 × 10^8.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 190921104 positive integers (up to 206831209) that are relatively prime to 206831209.
206831209 has 4 divisors, whose sum is 222741316
The reverse of 206831209 is 902138602
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 31
Digital Root 4
Name
two hundred six million eight hundred thirty-one thousand two hundred nine
Scientific notation
2.06831209 × 10^8
Engineering notation
2.06831209 × 10^6
Prime Factorization
13 × 15910093
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
206831209
Product of the distinct prime numbers
The prime factorization of 206831209 is 13 × 15910093.
Since it has a total of 2 prime factors.
4 , 8 , 77 , 80 , 514 , 528 , 1167 , 1510 , 46893 , 34517 , 24309 , 636904 , 8463955 , 1064589 , 35490609 , 54666352 , 62803767 , 18047911 , 1323500154 , 1752813912
n×2
413662418
n×3
620493627
n×4
827324836
n×5
1034156045
n÷2
103415604.5
n÷3
68943736.333333
n÷3
51707802.25
n÷5
41366241.8
n2
42779149016401681
n3
8.8480631110535E+24
n4
1.8300555905675E+33
n5
3.7851261033429E+41
2 √n
14381.627480922
3 √n
591.38734040701
4 √n
119.92342340394
5 √n
46.038717194949
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
-206831208
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 206831209 can be divided by 4 positive divisors.
The sum of these divisors (counting 206831209) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100010100111111111001101001
3
Ternary
112102012010002011
4
Quaternary
30110333321221
5
Quinary
410422044314
6
Senary
32305035521
8
Octal
1424777151
10
Decimal
206831209
12
Duodecimal
59325ba1
16
Hexadecimal
c53fe69
20
Vigesimal
34cdi09
36
Base36
3f53zd
md5
c62bbb576428312db8ded42f6973a093
sha1
28fc7a43cbe3b3973251cd9190c2c01fd1e92aa7
sha256
7f3b76743c5310e6a28aafeccbabe302917fd0fa2feef48fc39cef66ba29eabc
sha512
f4d479b3afe937d9a13b728e406982c6aac41ab0623a2020b8a8b7a43b2d49b245cb55d84b7e7d6ec1ed1c11aaef5e5a90cf99384d49bb0a86c405e76dabf79e
ripemd-160
9c8712f5cf3cd966097a92e8a29150482cb894b2
Diameter
413662418
Circumference
1299558813.455
Area
1.3439466027675E+17
Volume
3.7062680090913E+25
Surface area
5.37578641107E+17
Circumference
1299558813.455
Perimeter
827324836
Area
42779149016401681
Diagonal
292503500.88982
Surface area
256674894098410086
Volume
8.8480631110535E+24
Space diagonal
358242162.5789
Perimeter
620493627
Area
1.8523914900242E+16
Altitude
179121081.28945
Surface area
1.8523914900242E+16
Volume
1.0427542376987E+24
Height
97501166.963275