21009005 is an odd 8-digits composite number following 21009004
and preceding 21009006 . In scientific notation, it is written as 2.1009005 × 10^7.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 16076368 positive integers (up to 21009005) that are relatively prime to 21009005.
21009005 has 4 divisors, whose sum is 21191808
The reverse of 21009005 is 50090012
Previous prime number is 115
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million nine thousand five
Scientific notation
2.1009005 × 10^7
Engineering notation
2.1009005 × 10^6
Prime Factorization
115 × 182687
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21009005
Product of the distinct prime numbers
The prime factorization of 21009005 is 115 × 182687.
Since it has a total of 2 prime factors.
10 , 4 , 71 , 52 , 16 , 543 , 3914 , 7033 , 39374 , 7186 , 722771 , 85731 , 2970357 , 1446728 , 5581019 , 66909935 , 892343962 , 436374529 , 6865733056 , 3463968843
n×2
42018010
n×3
63027015
n×4
84036020
n×5
105045025
n÷2
10504502.5
n÷3
7003001.6666667
n÷3
5252251.25
n÷5
4201801
n2
441378291090025
n3
9.2729187244018E+21
n4
1.9481479584555E+29
n5
4.0928650199932E+36
2 √n
4583.5581157001
3 √n
275.93184710148
4 √n
67.701980146079
5 √n
29.139432996271
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21009004
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21009005 can be divided by 4 positive divisors.
The sum of these divisors (counting 21009005) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001001001001101101
3
Ternary
1110112100221022
4
Quaternary
1100021021231
5
Quinary
20334242010
6
Senary
2030143525
8
Octal
120111155
10
Decimal
21009005
12
Duodecimal
7051ba5
16
Hexadecimal
140926d
20
Vigesimal
6b62a5
36
Base36
cianh
md5
21984a4d71b4500ad43593fc073e04ee
sha1
00b71289907a47c26f06f6ec4f85ac0479b44d31
sha256
3b118bf480eee398a9dc7a1b7b188fbcd19f1fea8440aca3001d72b171b91e16
sha512
7751ae8b7abb9ebf33e99d5a5dcce287f99b0ae7f336d632c6634727d9be2e61557ea08c1c82eb6feac5ef3e3bcd6d8762e5d129a8421798dbe4be7fbe1bf2b2
ripemd-160
963ef179b3fd94800f58a350cdde693d3ace7a2a
Diameter
42018010
Circumference
132003471.53446
Area
1.3866307967424E+15
Volume
3.8842311122555E+22
Surface area
5.5465231869698E+15
Circumference
132003471.53446
Perimeter
84036020
Area
441378291090025
Diagonal
29711219.802964
Surface area
2648269746540150
Volume
9.2729187244018E+21
Space diagonal
36388664.076469
Perimeter
63027015
Area
1.9112240638146E+14
Altitude
18194332.038234
Surface area
1.9112240638146E+14
Volume
1.0928239519027E+21
Height
9903739.9343214