21006975 is an odd 8-digits composite number following 21006974
and preceding 21006976 . In scientific notation, it is written as 2.1006975 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 10184800 positive integers (up to 21006975) that are relatively prime to 21006975.
21006975 has 8 divisors, whose sum is 22815744
The reverse of 21006975 is 57960012
Previous prime number is 55
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million six thousand nine hundred seventy-five
Scientific notation
2.1006975 × 10^7
Engineering notation
2.1006975 × 10^6
Prime Factorization
15 × 55 × 25463
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21006975
Product of the distinct prime numbers
The prime factorization of 21006975 is 15 × 55 × 25463.
Since it has a total of 3 prime factors.
9 , 10 , 11 , 49 , 117 , 850 , 7764 , 1692 , 24455 , 89076 , 107205 , 711517 , 5814939 , 5860688 , 85483635 , 44860310 , 934663243 , 944049904 , 7249258301 , 6993517099
n×2
42013950
n×3
63020925
n×4
84027900
n×5
105034875
n÷2
10503487.5
n÷3
7002325
n÷3
5251743.75
n÷5
4201395
n2
441292998650625
n3
9.2702309903287E+21
n4
1.9473951065806E+29
n5
4.0908880319061E+36
2 √n
4583.3366666655
3 √n
275.9229594889
4 √n
67.700344656918
5 √n
29.138869853605
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
-21006974
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 21006975 can be divided by 8 positive divisors.
The sum of these divisors (counting 21006975) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001000101001111111
3
Ternary
1110112021011010
4
Quaternary
1100020221333
5
Quinary
20334210400
6
Senary
2030130303
8
Octal
120105177
10
Decimal
21006975
12
Duodecimal
7050993
16
Hexadecimal
1408a7f
20
Vigesimal
6b5h8f
36
Base36
ci933
md5
eb71eec0e846a31effdcb77157a69c76
sha1
9b9ec708f5e0c6058e4b7dda460c13f1bad338c7
sha256
f4ef4e939a2c2d1fa7d2abc8fa726535dc3711806f6ccf8cad5dc898d87c6340
sha512
0e1fd661fa53c80dc32d8d486a0c3b59da3ce2dccbc36bded2c366323705ab7dd1c7f6a56fb8b847254002e68271621250146477de899f58c0fedc3ed1fd148f
ripemd-160
979a8ecbdfc60b5c521fd48aa71fc5f6eeb5c6be
Diameter
42013950
Circumference
131990716.66829
Area
1.3863628426414E+15
Volume
3.8831052768396E+22
Surface area
5.5454513705657E+15
Circumference
131990716.66829
Perimeter
84027900
Area
441292998650625
Diagonal
29708348.949433
Surface area
2647757991903750
Volume
9.2702309903287E+21
Space diagonal
36385148.013329
Perimeter
63020925
Area
1.9108547367183E+14
Altitude
18192574.006665
Surface area
1.9108547367183E+14
Volume
1.0925071994045E+21
Height
9902782.9831442