21086493 is an odd 8-digits composite number following 21086492
and preceding 21086494 . In scientific notation, it is written as 2.1086493 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 14057660 positive integers (up to 21086493) that are relatively prime to 21086493.
21086493 has 4 divisors, whose sum is 28115328
The reverse of 21086493 is 39468012
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million eighty-six thousand four hundred ninety-three
Scientific notation
2.1086493 × 10^7
Engineering notation
2.1086493 × 10^6
Prime Factorization
3 × 7028831
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21086493
Product of the distinct prime numbers
The prime factorization of 21086493 is 3 × 7028831.
Since it has a total of 2 prime factors.
6 , 3 , 31 , 13 , 375 , 982 , 2943 , 5032 , 69873 , 19081 , 191642 , 724504 , 7137269 , 8941446 , 56943017 , 71695363 , 784050782 , 36516367 , 7807460320 , 4410771468
n×2
42172986
n×3
63259479
n×4
84345972
n×5
105432465
n÷2
10543246.5
n÷3
7028831
n÷3
5271623.25
n÷5
4217298.6
n2
444640187039049
n3
9.3759021915176E+21
n4
1.9770489593012E+29
n5
4.1689029040962E+36
2 √n
4592.0031576644
3 √n
276.27067281805
4 √n
67.764320683265
5 √n
29.160896483074
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21086492
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21086493 can be divided by 4 positive divisors.
The sum of these divisors (counting 21086493) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011100000100011101
3
Ternary
1110200022020020
4
Quaternary
1100130010131
5
Quinary
20344231433
6
Senary
2031542353
8
Octal
120340435
10
Decimal
21086493
12
Duodecimal
708a9b9
16
Hexadecimal
141c11d
20
Vigesimal
6bfg4d
36
Base36
cjyfx
md5
4777592b289e186edd18807748853e4d
sha1
e4b30180a7b355c2d62c6b8417b2e2dda0d08bc6
sha256
f2c6c800bceb6ee24c3d6f18e48a1359b0afec3e6009edfe6d1b968a0e0d7346
sha512
e50c27d0045db9ded997ccd474be39d175353cf0176b2d8ec60cd7c56240c14606a14b9a03a0da9f17c33f4a5cc90d7e2bf3a863045d97811e65c2fae01a9b93
ripemd-160
00d8b307fa2f61511a30cc5608782aff9609edaa
Diameter
42172986
Circumference
132490342.99755
Area
1.3968783450927E+15
Volume
3.9273687260864E+22
Surface area
5.5875133803707E+15
Circumference
132490342.99755
Perimeter
84345972
Area
444640187039049
Diagonal
29820804.383485
Surface area
2667841122234294
Volume
9.3759021915176E+21
Space diagonal
36522877.229445
Perimeter
63259479
Area
1.9253484875964E+14
Altitude
18261438.614723
Surface area
1.9253484875964E+14
Volume
1.104960669894E+21
Height
9940268.1278284