21082281 is an odd 8-digits composite number following 21082280
and preceding 21082282 . In scientific notation, it is written as 2.1082281 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 12777120 positive integers (up to 21082281) that are relatively prime to 21082281.
21082281 has 8 divisors, whose sum is 30665184
The reverse of 21082281 is 18228012
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million eighty-two thousand two hundred eighty-one
Scientific notation
2.1082281 × 10^7
Engineering notation
2.1082281 × 10^6
Prime Factorization
3 × 11 × 638857
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21082281
Product of the distinct prime numbers
The prime factorization of 21082281 is 3 × 11 × 638857.
Since it has a total of 3 prime factors.
7 , 2 , 20 , 32 , 493 , 718 , 424 , 397 , 71536 , 77226 , 732323 , 902140 , 2767979 , 7862780 , 36830906 , 46219938 , 336055623 , 981805232 , 2296130100 , 8679162990
n×2
42164562
n×3
63246843
n×4
84329124
n×5
105411405
n÷2
10541140.5
n÷3
7027427
n÷3
5270570.25
n÷5
4216456.2
n2
444462572162961
n3
9.3702848403223E+21
n4
1.9754697805372E+29
n5
4.1647409020293E+36
2 √n
4591.5445113818
3 √n
276.25227668865
4 √n
67.760936470667
5 √n
29.15973141963
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
-21082280
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 21082281 can be divided by 8 positive divisors.
The sum of these divisors (counting 21082281) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011011000010101001
3
Ternary
1110200002110020
4
Quaternary
1100123002221
5
Quinary
20344113111
6
Senary
2031511053
8
Octal
120330251
10
Decimal
21082281
12
Duodecimal
7088489
16
Hexadecimal
141b0a9
20
Vigesimal
6bf5e1
36
Base36
cjv6x
md5
d3fe08a1441735e3f288fff129c70b3a
sha1
dbea6e3e1bd7b27cb18fa8c3ed56a9b5a16cbbf9
sha256
bf17ffae321f6f640879d21bfb9b20db80b359487b572cf784407ac8c71e32b2
sha512
642c7bf0962d3518fa6c2013ece2176a8bef16553a3255ae5b32f560b32c75be75f7147dd9f24798b6bc46b24b8806c2fbec16dee682be40116df5dd5f18484b
ripemd-160
3eda420e1959e1b1c858edee5f146a087849f654
Diameter
42164562
Circumference
132463878.22103
Area
1.3963203515028E+15
Volume
3.9250157355201E+22
Surface area
5.5852814060111E+15
Circumference
132463878.22103
Perimeter
84329124
Area
444462572162961
Diagonal
29814847.715961
Surface area
2666775432977766
Volume
9.3702848403223E+21
Space diagonal
36515581.831444
Perimeter
63246843
Area
1.9245793926225E+14
Altitude
18257790.915722
Surface area
1.9245793926225E+14
Volume
1.1042986587069E+21
Height
9938282.5719869