21086418 is an even 8-digits composite number following 21086417
and preceding 21086419 . In scientific notation, it is written as 2.1086418 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 7028804 positive integers (up to 21086418) that are relatively prime to 21086418.
21086418 has 8 divisors, whose sum is 42172848
The reverse of 21086418 is 81468012
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million eighty-six thousand four hundred eighteen
Scientific notation
2.1086418 × 10^7
Engineering notation
2.1086418 × 10^6
Prime Factorization
2 × 3 × 3514403
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21086418
Product of the distinct prime numbers
The prime factorization of 21086418 is 2 × 3 × 3514403.
Since it has a total of 3 prime factors.
5 , 5 , 87 , 53 , 164 , 245 , 1810 , 8989 , 77315 , 22344 , 892627 , 543748 , 4557377 , 5501309 , 3540772 , 39157422 , 879182019 , 932034993 , 6954957019 , 1744885068
n×2
42172836
n×3
63259254
n×4
84345672
n×5
105432090
n÷2
10543209
n÷3
7028806
n÷3
5271604.5
n÷5
4217283.6
n2
444637024070724
n3
9.3758021478313E+21
n4
1.9770208317447E+29
n5
4.1688287652876E+36
2 √n
4591.9949912865
3 √n
276.27034527307
4 √n
67.764260427503
5 √n
29.160875739271
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
-21086417
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 21086418 can be divided by 8 positive divisors.
The sum of these divisors (counting 21086418) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011100000011010010
3
Ternary
1110200022010110
4
Quaternary
1100130003102
5
Quinary
20344231133
6
Senary
2031542150
8
Octal
120340322
10
Decimal
21086418
12
Duodecimal
708a956
16
Hexadecimal
141c0d2
20
Vigesimal
6bfg0i
36
Base36
cjydu
md5
9f5cd83debf547fd2e0622781624e5cc
sha1
58cfe265d59e4b99b98274f6f3cd0e4965cff1aa
sha256
ceb73a30360e02132ac4d6109ffaceac5777446391fd72f394b28ab54b41fb0a
sha512
948b65c821fafb7fba06ccdff58d350420f4a7279b57334cca913737ff2d0e9786bde5c497ccadec9a4f1ae6b7dfcec5f0cad1b40c409c9072bd1800a1cb584f
ripemd-160
e512beaae60505a769ce4906827842bfda93b257
Diameter
42172836
Circumference
132489871.75865
Area
1.3968684083346E+15
Volume
3.9273268198851E+22
Surface area
5.5874736333385E+15
Circumference
132489871.75865
Perimeter
84345672
Area
444637024070724
Diagonal
29820698.317468
Surface area
2667822144424344
Volume
9.3758021478313E+21
Space diagonal
36522747.325635
Perimeter
63259254
Area
1.9253347915418E+14
Altitude
18261373.662817
Surface area
1.9253347915418E+14
Volume
1.1049488796325E+21
Height
9940232.7724894