20861409 is an odd 8-digits composite number following 20861408
and preceding 20861410 . In scientific notation, it is written as 2.0861409 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 13907604 positive integers (up to 20861409) that are relatively prime to 20861409.
20861409 has 4 divisors, whose sum is 27815216
The reverse of 20861409 is 90416802
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million eight hundred sixty-one thousand four hundred nine
Scientific notation
2.0861409 × 10^7
Engineering notation
2.0861409 × 10^6
Prime Factorization
3 × 6953803
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20861409
Product of the distinct prime numbers
The prime factorization of 20861409 is 3 × 6953803.
Since it has a total of 2 prime factors.
9 , 5 , 40 , 96 , 809 , 531 , 5188 , 6622 , 36366 , 24906 , 815159 , 203287 , 2053624 , 8375467 , 90657468 , 29638862 , 410333986 , 287728335 , 1844873424 , 7492260490
n×2
41722818
n×3
62584227
n×4
83445636
n×5
104307045
n÷2
10430704.5
n÷3
6953803
n÷3
5215352.25
n÷5
4172281.8
n2
435198385465281
n3
9.0788515153309E+21
n4
1.8939763471159E+29
n5
3.951101521351E+36
2 √n
4567.4291455916
3 √n
275.28415366976
4 √n
67.582757753673
5 √n
29.098374402484
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
-20861408
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 20861409 can be divided by 4 positive divisors.
The sum of these divisors (counting 20861409) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111100101000111100001
3
Ternary
1110020212110210
4
Quaternary
1033211013201
5
Quinary
20320031114
6
Senary
2023044333
8
Octal
117450741
10
Decimal
20861409
12
Duodecimal
6ba06a9
16
Hexadecimal
13e51e1
20
Vigesimal
6a7da9
36
Base36
cf4rl
md5
8355f8ad1bcdd2d400a026f65dfd4a39
sha1
937770fdca5cd7235c71262e4bebb1c91fabce64
sha256
cc228197b2654e40c667a48ed838a8ef2d0e2e57ccc2e3749fe30f596ada02ab
sha512
f7ff05d6d005672438a1deb8f8d04fdadc3cf4c3e81cd40380e95832df51d27f91d93ad6c7245c199d8ce1da31833d567dc44b64b22c64664e25309d6c36dcc4
ripemd-160
0c96490ed4f874b3d1031b6030e274101d683464
Diameter
41722818
Circumference
131076098.51586
Area
1.3672160506319E+15
Volume
3.8029404298128E+22
Surface area
5.4688642025275E+15
Circumference
131076098.51586
Perimeter
83445636
Area
435198385465281
Diagonal
29502487.538012
Surface area
2611190312791686
Volume
9.0788515153309E+21
Space diagonal
36133020.305475
Perimeter
62584227
Area
1.8844642874945E+14
Altitude
18066510.152737
Surface area
1.8844642874945E+14
Volume
1.0699529119794E+21
Height
9834162.5126707