21284889 is an odd 8-digits composite number following 21284888
and preceding 21284890 . In scientific notation, it is written as 2.1284889 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 14168496 positive integers (up to 21284889) that are relatively prime to 21284889.
21284889 has 8 divisors, whose sum is 28422720
The reverse of 21284889 is 98848212
Previous prime number is 709
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-one million two hundred eighty-four thousand eight hundred eighty-nine
Scientific notation
2.1284889 × 10^7
Engineering notation
2.1284889 × 10^6
Prime Factorization
3 × 709 × 10007
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21284889
Product of the distinct prime numbers
The prime factorization of 21284889 is 3 × 709 × 10007.
Since it has a total of 3 prime factors.
10 , 10 , 67 , 15 , 499 , 972 , 61 , 6245 , 75830 , 58927 , 562749 , 174818 , 78207 , 9219928 , 42559049 , 49435548 , 158835539 , 780430063 , 3508598216 , 684967280
n×2
42569778
n×3
63854667
n×4
85139556
n×5
106424445
n÷2
10642444.5
n÷3
7094963
n÷3
5321222.25
n÷5
4256977.8
n2
453046499742321
n3
9.6430444588538E+21
n4
2.0525113092877E+29
n5
4.3687475389433E+36
2 √n
4613.5549200156
3 √n
277.13441672719
4 √n
67.923154520499
5 √n
29.215564218726
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
-21284888
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 21284889 can be divided by 8 positive divisors.
The sum of these divisors (counting 21284889) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001001100100000011001
3
Ternary
1111001101101020
4
Quaternary
1101030200121
5
Quinary
20422104024
6
Senary
2040113053
8
Octal
121144031
10
Decimal
21284889
12
Duodecimal
7165789
16
Hexadecimal
144c819
20
Vigesimal
6d0c49
36
Base36
co7ix
md5
be61de4547d3d6f05fe6759dc2884f95
sha1
3b2c088df59fcff84c43e757cd3f0afea31289e4
sha256
1da700a94384d2762a7cb81dd79953c9a3e2166f9d190ceae49ba2611f2be34f
sha512
0a90b4d9166feb8ba6891360b549e850803b6b50c2af371b198eed2ecf019b1a9ea6e3583a99a8a303620b31491ab22dbde06ff8483f6d0b1f73a344e0531163
ripemd-160
88ff4680fea043736bd57a549f891c16c31d9e8f
Diameter
42569778
Circumference
133736901.82975
Area
1.423287555325E+15
Volume
4.0392690173567E+22
Surface area
5.6931502213002E+15
Circumference
133736901.82975
Perimeter
85139556
Area
453046499742321
Diagonal
30101378.697406
Surface area
2718278998453926
Volume
9.6430444588538E+21
Space diagonal
36866509.181464
Perimeter
63854667
Area
1.9617488893624E+14
Altitude
18433254.590732
Surface area
1.9617488893624E+14
Volume
1.1364436880232E+21
Height
10033792.899135