21020005 is an odd 8-digits composite number following 21020004
and preceding 21020006 . In scientific notation, it is written as 2.1020005 × 10^7.
The sum of its digits is 10. It has a total of 2 prime factors and 4 positive divisors.
There are 16816000 positive integers (up to 21020005) that are relatively prime to 21020005.
21020005 has 4 divisors, whose sum is 25224012
The reverse of 21020005 is 50002012
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 10
Digital Root 1
Name
twenty-one million twenty thousand five
Scientific notation
2.1020005 × 10^7
Engineering notation
2.1020005 × 10^6
Prime Factorization
5 × 4204001
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21020005
Product of the distinct prime numbers
The prime factorization of 21020005 is 5 × 4204001.
Since it has a total of 2 prime factors.
7 , 2 , 39 , 93 , 412 , 384 , 5646 , 4959 , 27292 , 72220 , 952173 , 854599 , 6295232 , 8005342 , 46437324 , 39995802 , 625990816 , 591101453 , 679235524 , 808995179
n×2
42040010
n×3
63060015
n×4
84080020
n×5
105100025
n÷2
10510002.5
n÷3
7006668.3333333
n÷3
5255001.25
n÷5
4204001
n2
441840610200025
n3
9.2874918356076E+21
n4
1.9522312482193E+29
n5
4.1035910598726E+36
2 √n
4584.7578998242
3 √n
275.9799966249
4 √n
67.710840342032
5 √n
29.142483751443
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
-21020004
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 21020005 can be divided by 4 positive divisors.
The sum of these divisors (counting 21020005) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001011110101100101
3
Ternary
1110112221000201
4
Quaternary
1100023311211
5
Quinary
20340120010
6
Senary
2030310501
8
Octal
120136545
10
Decimal
21020005
12
Duodecimal
7058431
16
Hexadecimal
140bd65
20
Vigesimal
6b7a05
36
Base36
cij51
md5
e91b99d02b9ed2a8c8e89fdb1e2fe32e
sha1
3bd43e47a5f7e23d6bebc9195daf0cf76326e426
sha256
4f6e99e12ae653ea5c2cfdf6163d3fdc808a7e27b18fa7239e5e57338739d509
sha512
26305ededb58314a93ce2b764739c6505424eff630c892e02258031ccdf501e06f71bd2892d88b877ba7c1212ed47a5d413f71fb39077778fc94b4e32a72ded4
ripemd-160
f2832e8ae8731e67ddb36d7384d783dcf22a9fdb
Diameter
42040010
Circumference
132072586.57284
Area
1.388083215062E+15
Volume
3.8903354828027E+22
Surface area
5.5523328602481E+15
Circumference
132072586.57284
Perimeter
84080020
Area
441840610200025
Diagonal
29726776.15215
Surface area
2651043661200150
Volume
9.2874918356076E+21
Space diagonal
36407716.635352
Perimeter
63060015
Area
1.9132259642842E+14
Altitude
18203858.317676
Surface area
1.9132259642842E+14
Volume
1.0945414095288E+21
Height
9908925.3840501