21087546 is an even 8-digits composite number following 21087545
and preceding 21087547 . In scientific notation, it is written as 2.1087546 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 6992000 positive integers (up to 21087546) that are relatively prime to 21087546.
21087546 has 16 divisors, whose sum is 42398208
The reverse of 21087546 is 64578012
Previous prime number is 191
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million eighty-seven thousand five hundred forty-six
Scientific notation
2.1087546 × 10^7
Engineering notation
2.1087546 × 10^6
Prime Factorization
2 × 3 × 191 × 18401
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21087546
Product of the distinct prime numbers
The prime factorization of 21087546 is 2 × 3 × 191 × 18401.
Since it has a total of 4 prime factors.
5 , 6 , 13 , 75 , 285 , 732 , 6193 , 7162 , 77884 , 23243 , 377016 , 208306 , 5707018 , 7457387 , 31252877 , 32463421 , 772338293 , 52806819 , 2209557753 , 2149289042
n×2
42175092
n×3
63262638
n×4
84350184
n×5
105437730
n÷2
10543773
n÷3
7029182
n÷3
5271886.5
n÷5
4217509.2
n2
444684596302116
n3
9.3773068800123E+21
n4
1.9774439018838E+29
n5
4.1699439243393E+36
2 √n
4592.1178120776
3 √n
276.27527146763
4 √n
67.765166657196
5 √n
29.161187719845
1 , 2 , 3 , 6 , 191 , 382 , 573 , 1146 , 18401 , 36802 , 55203 , 110406 , 3514591 , 7029182 , 10543773 , 21087546
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
-21087545
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 21087546 can be divided by 16 positive divisors.
The sum of these divisors (counting 21087546) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000011100010100111010
3
Ternary
1110200100200020
4
Quaternary
1100130110322
5
Quinary
20344300141
6
Senary
2031551310
8
Octal
120342472
10
Decimal
21087546
12
Duodecimal
708b536
16
Hexadecimal
141c53a
20
Vigesimal
6bfih6
36
Base36
cjz96
md5
5f5f5500bcb8381feae9500e0af3505e
sha1
74fcb45041a588dd89488b9782751af9263aaf3c
sha256
6381037fa49ded1355ef764554993c0e2a5a8348c6c551bee7fdff62cacf451c
sha512
1dec044580ae44466d20abce533019f893f5da84492486179ddc749e0b50beb974e86123e7c3d80ff6dfe0ae8091e04c1120145dc588d7cf35e9749fdef00c8b
ripemd-160
e0e4248eea6fa422d3df7acf6570e2e5b35454fa
Diameter
42175092
Circumference
132496959.19167
Area
1.3970178609073E+15
Volume
3.9279571206272E+22
Surface area
5.5880714436291E+15
Circumference
132496959.19167
Perimeter
84350184
Area
444684596302116
Diagonal
29822293.550367
Surface area
2668107577812696
Volume
9.3773068800123E+21
Space diagonal
36524701.078946
Perimeter
63262638
Area
1.9255407853463E+14
Altitude
18262350.539473
Surface area
1.9255407853463E+14
Volume
1.1051262140207E+21
Height
9940764.5167888