21086789 is an odd 8-digits composite number following 21086788
and preceding 21086790 . In scientific notation, it is written as 2.1086789 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 19332000 positive integers (up to 21086789) that are relatively prime to 21086789.
21086789 has 8 divisors, whose sum is 22913280
The reverse of 21086789 is 98768012
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million eighty-six thousand seven hundred eighty-nine
Scientific notation
2.1086789 × 10^7
Engineering notation
2.1086789 × 10^6
Prime Factorization
31 × 19 × 35801
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21086789
Product of the distinct prime numbers
The prime factorization of 21086789 is 31 × 19 × 35801.
Since it has a total of 3 prime factors.
1 , 7 , 95 , 91 , 319 , 423 , 9622 , 7823 , 59358 , 80766 , 62428 , 374042 , 2045883 , 7325041 , 19655250 , 2727222 , 697853618 , 942156709 , 7768566409 , 8442074869
n×2
42173578
n×3
63260367
n×4
84347156
n×5
105433945
n÷2
10543394.5
n÷3
7028929.6666667
n÷3
5271697.25
n÷5
4217357.8
n2
444652670330521
n3
9.3762970375463E+21
n4
1.9771599723206E+29
n5
4.1691955155571E+36
2 √n
4592.0353874943
3 √n
276.27196552134
4 √n
67.764558491104
5 √n
29.160978351377
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
-21086788
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 21086789 can be divided by 8 positive divisors.
The sum of these divisors (counting 21086789) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011100001001000101
3
Ternary
1110200022122012
4
Quaternary
1100130021011
5
Quinary
20344234124
6
Senary
2031544005
8
Octal
120341105
10
Decimal
21086789
12
Duodecimal
708b005
16
Hexadecimal
141c245
20
Vigesimal
6bfgj9
36
Base36
cjyo5
md5
1db84253ffb07f272252068a49504e28
sha1
c4b92c99307be1b03f8a4d1fd4e856902b8f7ffa
sha256
d930b238d55321237a735052abd9a7cabe136a72653c916c13af1c9caa0872be
sha512
2b414647843a6a21e9231390105df335e757db7e289a0e8cfd65fe25ba9d28d18bce6069ee6796e85bbdd3c0943271141d14f33bbcadac27733b84bf495e08f5
ripemd-160
c6be2b40dc064bffaaeabfa761b9ea257fab8c40
Diameter
42173578
Circumference
132492202.8204
Area
1.3969175625094E+15
Volume
3.9275341188041E+22
Surface area
5.5876702500378E+15
Circumference
132492202.8204
Perimeter
84347156
Area
444652670330521
Diagonal
29821222.9907
Surface area
2667916021983126
Volume
9.3762970375463E+21
Space diagonal
36523389.916485
Perimeter
63260367
Area
1.9254025418341E+14
Altitude
18261694.958242
Surface area
1.9254025418341E+14
Volume
1.1050072029447E+21
Height
9940407.6635666