21086447 is an odd 8-digits composite number following 21086446
and preceding 21086448 . In scientific notation, it is written as 2.1086447 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 19976616 positive integers (up to 21086447) that are relatively prime to 21086447.
21086447 has 4 divisors, whose sum is 22196280
The reverse of 21086447 is 74468012
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million eighty-six thousand four hundred forty-seven
Scientific notation
2.1086447 × 10^7
Engineering notation
2.1086447 × 10^6
Prime Factorization
19 × 1109813
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21086447
Product of the distinct prime numbers
The prime factorization of 21086447 is 19 × 1109813.
Since it has a total of 2 prime factors.
6 , 4 , 89 , 1 , 717 , 480 , 3083 , 685 , 71028 , 6798 , 508090 , 670642 , 9764999 , 8181742 , 72600788 , 28543006 , 124376486 , 60954331 , 9484938978 , 7320319477
n×2
42172894
n×3
63259341
n×4
84345788
n×5
105432235
n÷2
10543223.5
n÷3
7028815.6666667
n÷3
5271611.75
n÷5
4217289.4
n2
444638247083809
n3
9.3758408313056E+21
n4
1.9770317076976E+29
n5
4.1688574321685E+36
2 √n
4591.9981489543
3 √n
276.27047192389
4 √n
67.764283726417
5 √n
29.160883760215
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
-21086446
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 21086447 can be divided by 4 positive divisors.
The sum of these divisors (counting 21086447) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011100000011101111
3
Ternary
1110200022011112
4
Quaternary
1100130003233
5
Quinary
20344231242
6
Senary
2031542235
8
Octal
120340357
10
Decimal
21086447
12
Duodecimal
708a97b
16
Hexadecimal
141c0ef
20
Vigesimal
6bfg27
36
Base36
cjyen
md5
857abfb86e76dc86ac087c39a94148c2
sha1
a864a47d1afd7d413292620b85f22207c6c05868
sha256
d77bde69cf27fa3b7a88b37efc6c8ac6f8c719926c568550a65bce1586484f19
sha512
d6ee995f29f42140f2832c7538ffe02096ae8acbd00edaf87135e2b2cf24ce32a4af47e0d1d4b2412a477a9a08fc9b4cf6fd25dec8bf4cd4916a3294d6cb7fe6
ripemd-160
b3419dd3060c26e674d17a70f95714c4fa23ae39
Diameter
42172894
Circumference
132490053.97102
Area
1.3968722505435E+15
Volume
3.9273430235809E+22
Surface area
5.5874890021742E+15
Circumference
132490053.97102
Perimeter
84345788
Area
444638247083809
Diagonal
29820739.329661
Surface area
2667829482502854
Volume
9.3758408313056E+21
Space diagonal
36522797.555108
Perimeter
63259341
Area
1.9253400873438E+14
Altitude
18261398.777554
Surface area
1.9253400873438E+14
Volume
1.1049534385237E+21
Height
9940246.4432205