21361278 is an even 8-digits composite number following 21361277
and preceding 21361279 . In scientific notation, it is written as 2.1361278 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 7120424 positive integers (up to 21361278) that are relatively prime to 21361278.
21361278 has 8 divisors, whose sum is 42722568
The reverse of 21361278 is 87216312
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 three hundred sixty-one thousand two hundred seventy-eight
Scientific notation
2.1361278 × 10^7
Engineering notation
2.1361278 × 10^6
Prime Factorization
2 × 3 × 3560213
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21361278
Product of the distinct prime numbers
The prime factorization of 21361278 is 2 × 3 × 3560213.
Since it has a total of 3 prime factors.
9 , 6 , 57 , 89 , 64 , 242 , 2238 , 634 , 16525 , 80686 , 993428 , 692381 , 1789251 , 9685046 , 99235222 , 33385373 , 797444566 , 178802573 , 5142776011 , 5196472221
n×2
42722556
n×3
64083834
n×4
85445112
n×5
106806390
n÷2
10680639
n÷3
7120426
n÷3
5340319.5
n÷5
4272255.6
n2
456304197793284
n3
9.7472408216293E+21
n4
2.0821352092377E+29
n5
4.4477069038115E+36
2 √n
4621.8262624205
3 √n
277.4655553384
4 √n
67.984014756563
5 √n
29.236504434322
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
-21361277
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 21361278 can be divided by 8 positive divisors.
The sum of these divisors (counting 21361278) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001011111001001111110
3
Ternary
1111012021011110
4
Quaternary
1101133021332
5
Quinary
20432030103
6
Senary
2041502450
8
Octal
121371176
10
Decimal
21361278
12
Duodecimal
71a1a26
16
Hexadecimal
145f27e
20
Vigesimal
6da33i
36
Base36
cpugu
md5
c41710b3c3963fde667fe265dccb6a33
sha1
a6e4f5bfb2e5057ff3c4efc812f2ca21ef19d3df
sha256
10d0b16f037fec89b1c49c7cde582668f6ec669fd5d7b3978d51de1303c5948b
sha512
d89555818ef43aa898228eba9cc65023b9af49e50399354b949ea15bdb54f6a267a7f12a3726c6e62cef323a82cfa726328d8ff8c27758190689391e11e282e0
ripemd-160
741ebb092e7158f220857a2a93c1f8076ee7f9e8
Diameter
42722556
Circumference
134216868.07218
Area
1.4335219155896E+15
Volume
4.0829146877335E+22
Surface area
5.7340876623583E+15
Circumference
134216868.07218
Perimeter
85445112
Area
456304197793284
Diagonal
30209409.057222
Surface area
2737825186759704
Volume
9.7472408216293E+21
Space diagonal
36998818.810603
Perimeter
64083834
Area
1.9758551357123E+14
Altitude
18499409.405302
Surface area
1.9758551357123E+14
Volume
1.1487233471387E+21
Height
10069803.019074