21009008 is an even 8-digits composite number following 21009007
and preceding 21009009 . In scientific notation, it is written as 2.1009008 × 10^7.
The sum of its digits is 20. It has a total of 6 prime factors and 20 positive divisors.
There are 9886464 positive integers (up to 21009008) that are relatively prime to 21009008.
21009008 has 20 divisors, whose sum is 43099920
The reverse of 21009008 is 80090012
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million nine thousand eight
Scientific notation
2.1009008 × 10^7
Engineering notation
2.1009008 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 17 × 77239
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
2626126
Product of the distinct prime numbers
The prime factorization of 21009008 is 2 × 2 × 2 × 2 × 17 × 77239.
Since it has a total of 6 prime factors.
8 , 10 , 88 , 12 , 438 , 844 , 1734 , 4982 , 86384 , 57758 , 690994 , 291483 , 9756188 , 8059695 , 14939531 , 1293826 , 287350115 , 88029051 , 4831415320 , 9873085879
n×2
42018016
n×3
63027024
n×4
84036032
n×5
105045040
n÷2
10504504
n÷3
7003002.6666667
n÷3
5252252
n÷5
4201801.6
n2
441378417144064
n3
9.272922696807E+21
n4
1.948149071206E+29
n5
4.0928679422159E+36
2 √n
4583.5584429567
3 √n
275.93186023546
4 √n
67.70198256297
5 √n
29.139433828469
1 , 2 , 4 , 8 , 16 , 17 , 34 , 68 , 136 , 272 , 77239 , 154478 , 308956 , 617912 , 1235824 , 1313063 , 2626126 , 5252252 , 10504504 , 21009008
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21009007
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21009008 can be divided by 20 positive divisors.
The sum of these divisors (counting 21009008) is 1, the average is 0.05.
Base
System
Value
2
Binary
1010000001001001001110000
3
Ternary
1110112100221102
4
Quaternary
1100021021300
5
Quinary
20334242013
6
Senary
2030143532
8
Octal
120111160
10
Decimal
21009008
12
Duodecimal
7051ba8
16
Hexadecimal
1409270
20
Vigesimal
6b62a8
36
Base36
ciank
md5
8f71c3f8bfa8b3f8a157571f9d48f218
sha1
681e7aeaeea40485fad552d4a6405d994e6db1c8
sha256
ffbe6ca9642bb12f4b6970c6f9091d9ceb60673e0044f209381b23973876bd2b
sha512
f12ee991fc91f406f1f07529eba897c87731861c1bb261493339a7ce0688bebc332a35765f64060077a1f682e5a9ef90a94adbee7a120d9f2a2352bae8e15e07
ripemd-160
8f277acd8d04da4a1cf0152d6799f4d9a03ceaa1
Diameter
42018016
Circumference
132003490.38402
Area
1.3866311927529E+15
Volume
3.8842327762126E+22
Surface area
5.5465247710115E+15
Circumference
132003490.38402
Perimeter
84036032
Area
441378417144064
Diagonal
29711224.045605
Surface area
2648270502864384
Volume
9.272922696807E+21
Space diagonal
36388669.272621
Perimeter
63027024
Area
1.9112246096446E+14
Altitude
18194334.63631
Surface area
1.9112246096446E+14
Volume
1.0928244200551E+21
Height
9903741.348535