21000910 is an even 8-digits composite number following 21000909
and preceding 21000911 . In scientific notation, it is written as 2.1000910 × 10^7.
The sum of its digits is 13. It has a total of 5 prime factors and 24 positive divisors.
There are 7200144 positive integers (up to 21000910) that are relatively prime to 21000910.
21000910 has 24 divisors, whose sum is 43974360
The reverse of 21000910 is 01900012
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 13
Digital Root 4
Name
twenty-one million nine hundred ten
Scientific notation
2.1000910 × 10^7
Engineering notation
2.1000910 × 10^6
Prime Factorization
2 × 7 × 7 × 5 × 42859
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
3000130
Product of the distinct prime numbers
The prime factorization of 21000910 is 2 × 7 × 7 × 5 × 42859.
Since it has a total of 5 prime factors.
9 , 6 , 10 , 87 , 871 , 144 , 9844 , 1321 , 18601 , 92238 , 262713 , 850217 , 850844 , 4530965 , 22398943 , 72454112 , 840856366 , 531875766 , 6976050599 , 466859206
n×2
42001820
n×3
63002730
n×4
84003640
n×5
105004550
n÷2
10500455
n÷3
7000303.3333333
n÷3
5250227.5
n÷5
4200182
n2
441038220828100
n3
9.2622039821711E+21
n4
1.9451471223122E+29
n5
4.0849859652437E+36
2 √n
4582.6749830203
3 √n
275.89640269325
4 √n
67.69545762472
5 √n
29.137187101485
1 , 2 , 5 , 7 , 10 , 14 , 35 , 49 , 70 , 98 , 245 , 490 , 42859 , 85718 , 214295 , 300013 , 428590 , 600026 , 1500065 , 2100091 , 3000130 , 4200182 , 10500455 , 21000910
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21000909
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21000910 can be divided by 24 positive divisors.
The sum of these divisors (counting 21000910) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010000000111001011001110
3
Ternary
1110111221211111
4
Quaternary
1100013023032
5
Quinary
20334012120
6
Senary
2030042234
8
Octal
120071316
10
Decimal
21000910
12
Duodecimal
704937a
16
Hexadecimal
14072ce
20
Vigesimal
6b525a
36
Base36
ci4em
md5
2196225861855a74bee8e62f61dd1679
sha1
c8272dc20c2a4707eee6ea5cebd6fe2b5c1f1618
sha256
43981844ccb88d93379f8066bb0b958fb1d509a0ea875a87d5d416547d1181dc
sha512
538046c70842cc02c025fca88becfe7dbaac579e572cb1c01c74e6d75692754f619dc70bc5995eb27a4f2d0dd915d4c7fbe5164d16a24e65626e6d5e6f26ad6f
ripemd-160
ed105ebfd464d259bbfc6fdd0851dfecc39cd11b
Diameter
42001820
Circumference
131952609.1494
Area
1.3855624345059E+15
Volume
3.8797429315252E+22
Surface area
5.5422497380235E+15
Circumference
131952609.1494
Perimeter
84003640
Area
441038220828100
Diagonal
29699771.744177
Surface area
2646229324968600
Volume
9.2622039821711E+21
Space diagonal
36374643.125181
Perimeter
63002730
Area
1.9097515163851E+14
Altitude
18187321.562591
Surface area
1.9097515163851E+14
Volume
1.091561207421E+21
Height
9899923.9147256