20215439 is an odd 8-digits composite number following 20215438
and preceding 20215440 . In scientific notation, it is written as 2.0215439 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 20204760 positive integers (up to 20215439) that are relatively prime to 20215439.
20215439 has 4 divisors, whose sum is 20226120
The reverse of 20215439 is 93451202
Previous prime number is 8221
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million two hundred fifteen thousand four hundred thirty-nine
Scientific notation
2.0215439 × 10^7
Engineering notation
2.0215439 × 10^6
Prime Factorization
8221 × 2459
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20215439
Product of the distinct prime numbers
The prime factorization of 20215439 is 8221 × 2459.
Since it has a total of 2 prime factors.
10 , 6 , 58 , 1 , 194 , 575 , 4175 , 7609 , 55115 , 30600 , 608042 , 479088 , 6131592 , 7382691 , 36386371 , 98539807 , 310720242 , 216870207 , 3521525401 , 4318114445
n×2
40430878
n×3
60646317
n×4
80861756
n×5
101077195
n÷2
10107719.5
n÷3
6738479.6666667
n÷3
5053859.75
n÷5
4043087.8
n2
408663973962721
n3
8.261321637141E+21
n4
1.67006243615E+29
n5
3.3761045304182E+36
2 √n
4496.1582489944
3 √n
272.41293517955
4 √n
67.05339848952
5 √n
28.915894755656
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
-20215438
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 20215439 can be divided by 4 positive divisors.
The sum of these divisors (counting 20215439) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000111011010001111
3
Ternary
1102001001100222
4
Quaternary
1031013122033
5
Quinary
20133343224
6
Senary
2001141555
8
Octal
115073217
10
Decimal
20215439
12
Duodecimal
692a8bb
16
Hexadecimal
134768f
20
Vigesimal
666ibj
36
Base36
c1abz
md5
a16c4338c33e85f03c317fbfce7930ea
sha1
1e2e0ce3781602b52c292e864222bcdc7c458d2e
sha256
fd9020171f987bbbdf2e1a8379bd882481b9ff9f93f6d24d4e10173c4c853893
sha512
cf2efa5d90cb564b1a914e3f11f59918053a39f2b1ec6d4b552e0263729fe6ffd476e3cb62329d50501c5f0db4c10c1dac8ea5fa379e4c57281df6912edc4c30
ripemd-160
46d366f22d8facd3f48c1e8da47d8704cefb1efe
Diameter
40430878
Circumference
127017349.30299
Area
1.2838557383881E+15
Volume
3.4604943152246E+22
Surface area
5.1354229535524E+15
Circumference
127017349.30299
Perimeter
80861756
Area
408663973962721
Diagonal
28588948.003126
Surface area
2451983843776326
Volume
8.261321637141E+21
Space diagonal
35014167.445309
Perimeter
60646317
Area
1.7695669153161E+14
Altitude
17507083.722655
Surface area
1.7695669153161E+14
Volume
9.7360609186426E+20
Height
9529649.3343753