21361286 is an even 8-digits composite number following 21361285
and preceding 21361287 . In scientific notation, it is written as 2.1361286 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 10680642 positive integers (up to 21361286) that are relatively prime to 21361286.
21361286 has 4 divisors, whose sum is 32041932
The reverse of 21361286 is 68216312
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million three hundred sixty-one thousand two hundred eighty-six
Scientific notation
2.1361286 × 10^7
Engineering notation
2.1361286 × 10^6
Prime Factorization
2 × 10680643
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21361286
Product of the distinct prime numbers
The prime factorization of 21361286 is 2 × 10680643.
Since it has a total of 2 prime factors.
7 , 10 , 17 , 83 , 882 , 285 , 6150 , 2650 , 37094 , 18884 , 92978 , 287511 , 2970857 , 1911029 , 80154031 , 51442311 , 950180987 , 591842923 , 4673585201 , 4000754351
n×2
42722572
n×3
64083858
n×4
85445144
n×5
106806430
n÷2
10680643
n÷3
7120428.6666667
n÷3
5340321.5
n÷5
4272257.2
n2
456304539573796
n3
9.7472517729342E+21
n4
2.0821383283565E+29
n5
4.4477152323586E+36
2 √n
4621.8271278792
3 √n
277.46558997622
4 √n
67.984021121725
5 √n
29.236506624191
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
-21361285
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 21361286 can be divided by 4 positive divisors.
The sum of these divisors (counting 21361286) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001011111001010000110
3
Ternary
1111012021011202
4
Quaternary
1101133022012
5
Quinary
20432030121
6
Senary
2041502502
8
Octal
121371206
10
Decimal
21361286
12
Duodecimal
71a1a32
16
Hexadecimal
145f286
20
Vigesimal
6da346
36
Base36
cpuh2
md5
84dc489b19d67971621cd118a872f1bd
sha1
e18dbf500406eb5b32066978fd5d1b3ea5b1a78e
sha256
a899f693d35af92bcb508c24cc2c2c146a0dde0616a0fdcf14eb99cb42b3ca8f
sha512
af81091b3ffff6325a14b8af2ec9f778ed54634cacc73ed03a76cbea5b3ee6380662423f912c9791f8ae03f1f6752a12188dff2ffcecceb9eb8fad6b515ed0d7
ripemd-160
67908e29aedc6f25bb828ac7865a3922b23bfa9c
Diameter
42722572
Circumference
134216918.33766
Area
1.4335229893247E+15
Volume
4.0829192750053E+22
Surface area
5.7340919572988E+15
Circumference
134216918.33766
Perimeter
85445144
Area
456304539573796
Diagonal
30209420.370931
Surface area
2737827237442776
Volume
9.7472517729342E+21
Space diagonal
36998832.66701
Perimeter
64083858
Area
1.9758566156653E+14
Altitude
18499416.333505
Surface area
1.9758566156653E+14
Volume
1.1487246377624E+21
Height
10069806.79031