21361279 is an odd 8-digits composite number following 21361278
and preceding 21361280 . In scientific notation, it is written as 2.1361279 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 20958184 positive integers (up to 21361279) that are relatively prime to 21361279.
21361279 has 4 divisors, whose sum is 21764376
The reverse of 21361279 is 97216312
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million three hundred sixty-one thousand two hundred seventy-nine
Scientific notation
2.1361279 × 10^7
Engineering notation
2.1361279 × 10^6
Prime Factorization
53 × 403043
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21361279
Product of the distinct prime numbers
The prime factorization of 21361279 is 53 × 403043.
Since it has a total of 2 prime factors.
8 , 3 , 27 , 100 , 451 , 300 , 5269 , 4901 , 28037 , 94117 , 831775 , 515546 , 3499109 , 8853611 , 32629300 , 23450511 , 289107203 , 251830400 , 6262190722 , 7070293421
n×2
42722558
n×3
64083837
n×4
85445116
n×5
106806395
n÷2
10680639.5
n÷3
7120426.3333333
n÷3
5340319.75
n÷5
4272255.8
n2
456304240515841
n3
9.747242190542E+21
n4
2.0821355991274E+29
n5
4.4477079448792E+36
2 √n
4621.8263706029
3 √n
277.46555966813
4 √n
67.984015552208
5 √n
29.236504708056
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
-21361278
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 21361279 can be divided by 4 positive divisors.
The sum of these divisors (counting 21361279) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001011111001001111111
3
Ternary
1111012021011111
4
Quaternary
1101133021333
5
Quinary
20432030104
6
Senary
2041502451
8
Octal
121371177
10
Decimal
21361279
12
Duodecimal
71a1a27
16
Hexadecimal
145f27f
20
Vigesimal
6da33j
36
Base36
cpugv
md5
379b04404ebc9bb09960022fa672e148
sha1
78eed9c98515dac8d66f497def26b1d5c99e0e85
sha256
d90b7b9122b2695ec2ab1a7bc690090a9c639695ee85b385bc063a62125f8993
sha512
f31948c1ff01c208f2d492fa3eb0a5957efdd4f475fbef97dd01847fc19e68ee7bbe796da508724b734cdbd0f496db96f7e20ac47d1166cab31b397385dd7c49
ripemd-160
712c48c19dd0bab495e07de953623c700c15c7c3
Diameter
42722558
Circumference
134216874.35536
Area
1.4335220498064E+15
Volume
4.0829152611423E+22
Surface area
5.7340881992257E+15
Circumference
134216874.35536
Perimeter
85445116
Area
456304240515841
Diagonal
30209410.471436
Surface area
2737825443095046
Volume
9.747242190542E+21
Space diagonal
36998820.542654
Perimeter
64083837
Area
1.9758553207064E+14
Altitude
18499410.271327
Surface area
1.9758553207064E+14
Volume
1.1487235084666E+21
Height
10069803.490479