21087834 is an even 8-digits composite number following 21087833
and preceding 21087835 . In scientific notation, it is written as 2.1087834 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 6596352 positive integers (up to 21087834) that are relatively prime to 21087834.
21087834 has 16 divisors, whose sum is 32491368
The reverse of 21087834 is 43878012
Previous prime number is 113
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million eighty-seven thousand eight hundred thirty-four
Scientific notation
2.1087834 × 10^7
Engineering notation
2.1087834 × 10^6
Prime Factorization
2 × 57 × 113 × 1637
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21087834
Product of the distinct prime numbers
The prime factorization of 21087834 is 2 × 57 × 113 × 1637.
Since it has a total of 4 prime factors.
4 , 8 , 96 , 48 , 344 , 204 , 7950 , 1452 , 24064 , 26235 , 470059 , 645886 , 8172810 , 6991675 , 27199477 , 31408165 , 857491117 , 440174336 , 4522103173 , 4958317367
n×2
42175668
n×3
63263502
n×4
84351336
n×5
105439170
n÷2
10543917
n÷3
7029278
n÷3
5271958.5
n÷5
4217566.8
n2
444696742811556
n3
9.3776910927508E+21
n4
1.9775519306721E+29
n5
4.1702286840392E+36
2 √n
4592.149170051
3 √n
276.27652919128
4 √n
67.765398029164
5 √n
29.161267372321
1 , 2 , 57 , 113 , 114 , 226 , 1637 , 3274 , 6441 , 12882 , 93309 , 184981 , 186618 , 369962 , 10543917 , 21087834
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
-21087833
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 21087834 can be divided by 16 positive divisors.
The sum of these divisors (counting 21087834) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000011100011001011010
3
Ternary
1110200101001220
4
Quaternary
1100130121122
5
Quinary
20344302314
6
Senary
2031552510
8
Octal
120343132
10
Decimal
21087834
12
Duodecimal
708b736
16
Hexadecimal
141c65a
20
Vigesimal
6bfjbe
36
Base36
cjzh6
md5
cc443dd3fd88b43250b3eb071a716e56
sha1
895b934cd8adb364542985bd5e6230efc329966b
sha256
c9700f8e55f014501e48a6f8b215569e66322477c409bbc47332d5707ae2359f
sha512
93d7f43253bdaf1ae20f1be3b5e5438730c160fdc1775d9e137d4708006cbe2b40f0814a167278970160f0b30aae90988cfb0123669d043f4172b1da0599e11b
ripemd-160
0bd76f324f4b5837d1cd3a11d912112ccaa2657b
Diameter
42175668
Circumference
132498768.74904
Area
1.3970560202921E+15
Volume
3.9281180592827E+22
Surface area
5.5882240811684E+15
Circumference
132498768.74904
Perimeter
84351336
Area
444696742811556
Diagonal
29822700.843872
Surface area
2668180456869336
Volume
9.3776910927508E+21
Space diagonal
36525199.909578
Perimeter
63263502
Area
1.925593381275E+14
Altitude
18262599.954789
Surface area
1.925593381275E+14
Volume
1.1051714939261E+21
Height
9940900.2812908