206813921 is an odd 9-digits composite number following 206813920
and preceding 206813922 . In scientific notation, it is written as 2.06813921 × 10^8.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 205578000 positive integers (up to 206813921) that are relatively prime to 206813921.
206813921 has 8 divisors, whose sum is 208053888
The reverse of 206813921 is 129318602
Previous prime number is 811
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 32
Digital Root 5
Name
two hundred six million eight hundred thirteen thousand nine hundred twenty-one
Scientific notation
2.06813921 × 10^8
Engineering notation
2.06813921 × 10^6
Prime Factorization
271 × 811 × 941
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
206813921
Product of the distinct prime numbers
The prime factorization of 206813921 is 271 × 811 × 941.
Since it has a total of 3 prime factors.
10 , 4 , 6 , 13 , 943 , 101 , 5704 , 5589 , 79640 , 93554 , 359349 , 440141 , 2234080 , 381709 , 45024514 , 42637876 , 491312694 , 162103523 , 9085678450 , 556555287
n×2
413627842
n×3
620441763
n×4
827255684
n×5
1034069605
n÷2
103406960.5
n÷3
68937973.666667
n÷3
51703480.25
n÷5
41362784.2
n2
42771997919394241
n3
8.8458445987138E+24
n4
1.8294438060167E+33
n5
3.7835444677147E+41
2 √n
14381.026423729
3 √n
591.37086289819
4 √n
119.92091737361
5 √n
46.037947539384
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
-206813920
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 206813921 can be divided by 8 positive divisors.
The sum of these divisors (counting 206813921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100010100111011101011100001
3
Ternary
112102011020100212
4
Quaternary
30110323223201
5
Quinary
410421021141
6
Senary
32304423505
8
Octal
1424735341
10
Decimal
206813921
12
Duodecimal
59317b95
16
Hexadecimal
c53bae1
20
Vigesimal
34cbeg1
36
Base36
3f4qn5
md5
6d45de864389bba4fd7756f28fdf8a91
sha1
3b08255369b4978493ff98d4c962427b834f8f05
sha256
57d49ffec0228697136e4a740b9b09488f183c924897044bf6b2ed5f02c7e463
sha512
886c8ea35029464b321e14d4b06ed3b2cc346c73d0440b45d6179057eca3f6ad91e9e5ceb87ae08c464eb8d81c15a2752755030061d9df3defed36f86a379ff8
ripemd-160
4737a0db342f52b29afefe7be4fdbd2af7af738f
Diameter
413627842
Circumference
1299450189.7474
Area
1.3437219444293E+17
Volume
3.7053387208155E+25
Surface area
5.3748877777171E+17
Circumference
1299450189.7474
Perimeter
827255684
Area
42771997919394241
Diagonal
292479051.96576
Surface area
256631987516365446
Volume
8.8458445987138E+24
Space diagonal
358212218.88454
Perimeter
620441763
Area
1.8520818384405E+16
Altitude
179106109.44227
Surface area
1.8520818384405E+16
Volume
1.0424927835121E+24
Height
97493017.321919