209214987 is an odd 9-digits composite number following 209214986
and preceding 209214988 . In scientific notation, it is written as 2.09214987 × 10^8.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 139027560 positive integers (up to 209214987) that are relatively prime to 209214987.
209214987 has 8 divisors, whose sum is 279851520
The reverse of 209214987 is 789412902
Previous prime number is 311
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
two hundred nine million two hundred fourteen thousand nine hundred eighty-seven
Scientific notation
2.09214987 × 10^8
Engineering notation
2.09214987 × 10^6
Prime Factorization
3 × 311 × 224239
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
209214987
Product of the distinct prime numbers
The prime factorization of 209214987 is 3 × 311 × 224239.
Since it has a total of 3 prime factors.
7 , 9 , 57 , 81 , 406 , 641 , 7362 , 4457 , 21942 , 68351 , 107230 , 122812 , 4384997 , 8074354 , 38521068 , 57549748 , 775079153 , 517578787 , 5382470393 , 813717951
n×2
418429974
n×3
627644961
n×4
836859948
n×5
1046074935
n÷2
104607493.5
n÷3
69738329
n÷3
52303746.75
n÷5
41842997.4
n2
43770910785410169
n3
9.1575305309477E+24
n4
1.9158926309843E+33
n5
4.0083345188478E+41
2 √n
14464.265864537
3 √n
593.6506266638
4 √n
120.26747633727
5 √n
46.144352715526
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
-209214986
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 209214987 can be divided by 8 positive divisors.
The sum of these divisors (counting 209214987) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100011110000101111000001011
3
Ternary
112120200020000020
4
Quaternary
30132011320023
5
Quinary
412024334422
6
Senary
32432111523
8
Octal
1436057013
10
Decimal
209214987
12
Duodecimal
5a0955a3
16
Hexadecimal
c785e0b
20
Vigesimal
357bh97
36
Base36
3gk7bf
md5
91958c4771bc74e7d938405b601d4819
sha1
82a4424eb88454de383f7cefdce2dfda7867012b
sha256
5e5329917bda855d270bc783e22b0f0cebf8351c19e379709a0edffb2ec55f32
sha512
604d6b74fc8cbe7efe6a1697875ad969df4bb63d9de1022b7e81767b34119d3302d4be1e57b3ccd9a2863d016df7c8daa4cf87b9c525b419543e36ef2cb88a14
ripemd-160
05c42d36a59efd610108405aac6c2a3aaaf5a1c5
Diameter
418429974
Circumference
1314536532.3602
Area
1.3751037176438E+17
Volume
3.8358974188066E+25
Surface area
5.5004148705752E+17
Circumference
1314536532.3602
Perimeter
836859948
Area
43770910785410169
Diagonal
295874672.06711
Surface area
262625464712461014
Volume
9.1575305309477E+24
Space diagonal
362370987.18886
Perimeter
627644961
Area
1.8953360343474E+16
Altitude
181185493.59443
Surface area
1.8953360343474E+16
Volume
1.0792253228927E+24
Height
98624890.689037