215085909 is an odd 9-digits composite number following 215085908
and preceding 215085910 . In scientific notation, it is written as 2.15085909 × 10^8.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 133927920 positive integers (up to 215085909) that are relatively prime to 215085909.
215085909 has 16 divisors, whose sum is 306132480
The reverse of 215085909 is 909580512
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 39
Digital Root 3
Name
two hundred fifteen million eighty-five thousand nine hundred nine
Scientific notation
2.15085909 × 10^8
Engineering notation
2.15085909 × 10^6
Prime Factorization
3 × 71 × 19 × 53147
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
215085909
Product of the distinct prime numbers
The prime factorization of 215085909 is 3 × 71 × 19 × 53147.
Since it has a total of 4 prime factors.
2 , 1 , 38 , 89 , 414 , 458 , 9528 , 320 , 88408 , 18113 , 565151 , 775058 , 5079299 , 9443528 , 25097129 , 4252291 , 458913953 , 112821415 , 8922803925 , 7973077917
n×2
430171818
n×3
645257727
n×4
860343636
n×5
1075429545
n÷2
107542954.5
n÷3
71695303
n÷3
53771477.25
n÷5
43017181.8
n2
46261948250356281
n3
9.9502931915388E+24
n4
2.1401678559186E+33
n5
4.6031994870284E+41
2 √n
14665.807478622
3 √n
599.15242269609
4 √n
121.10246685605
5 √n
46.400471304506
1 , 3 , 19 , 57 , 71 , 213 , 1349 , 4047 , 53147 , 159441 , 1009793 , 3029379 , 3773437 , 11320311 , 71695303 , 215085909
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-215085908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 215085909 can be divided by 16 positive divisors.
The sum of these divisors (counting 215085909) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100110100011111001101010101
3
Ternary
112222201111101210
4
Quaternary
30310133031111
5
Quinary
420030222114
6
Senary
33202012033
8
Octal
1464371525
10
Decimal
215085909
12
Duodecimal
60047019
16
Hexadecimal
cd1f355
20
Vigesimal
3745ef9
36
Base36
3k21cl
md5
1236f5e22725407c2315a216ed51d15b
sha1
a7dd251515c7070448c3ef3264ee71fc8155fc9b
sha256
bf64fb8edfa651939388349b9cfd2f2bb1e1838847bd96af92e12fd8209fa920
sha512
fbdbcd7d8a753f6aa8dd68145ef5917b40a633eaf465324d5b01ab5f5176f92b7ec87aee4df98d9bdc96a0fc8ff957b63f21b019cd80672cbbe19b2023201e92
ripemd-160
acaa1b234eaa762182627315c7f55f72ee6bc690
Diameter
430171818
Circumference
1351424623.2102
Area
1.4533619676407E+17
Volume
4.1679690655471E+25
Surface area
5.8134478705628E+17
Circumference
1351424623.2102
Perimeter
860343636
Area
46261948250356281
Diagonal
304177409.58315
Surface area
277571689502137686
Volume
9.9502931915388E+24
Space diagonal
372539722.38014
Perimeter
645257727
Area
2.0032011206685E+16
Altitude
186269861.19007
Surface area
2.0032011206685E+16
Volume
1.1726532984219E+24
Height
101392469.86105