20005281 is an odd 8-digits composite number following 20005280
and preceding 20005282 . In scientific notation, it is written as 2.0005281 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 6 positive divisors.
There are 13336848 positive integers (up to 20005281) that are relatively prime to 20005281.
20005281 has 6 divisors, whose sum is 28896530
The reverse of 20005281 is 18250002
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million five thousand two hundred eighty-one
Scientific notation
2.0005281 × 10^7
Engineering notation
2.0005281 × 10^6
Prime Factorization
3 × 3 × 2222809
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
6668427
Product of the distinct prime numbers
The prime factorization of 20005281 is 3 × 3 × 2222809.
Since it has a total of 3 prime factors.
1 , 4 , 50 , 6 , 869 , 416 , 1812 , 5437 , 54742 , 57856 , 84673 , 429887 , 2295770 , 9327769 , 84284216 , 62594850 , 222416563 , 37244571 , 6754435172 , 7283208715
n×2
40010562
n×3
60015843
n×4
80021124
n×5
100026405
n÷2
10002640.5
n÷3
6668427
n÷3
5001320.25
n÷5
4001056.2
n2
400211267888961
n3
8.0063388734849E+21
n4
1.6016905894529E+29
n5
3.2042270317061E+36
2 √n
4472.7263497782
3 √n
271.46565095601
4 √n
66.878444582527
5 √n
28.855521736869
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20005280
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20005281 can be divided by 6 positive divisors.
The sum of these divisors (counting 20005281) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001100010100000110100001
3
Ternary
1101122101002100
4
Quaternary
1030110012201
5
Quinary
20110132111
6
Senary
1552441013
8
Octal
114240641
10
Decimal
20005281
12
Duodecimal
6849169
16
Hexadecimal
13141a1
20
Vigesimal
650d41
36
Base36
bws69
md5
e4c927057ad6dfd04521f6ff3a83d07c
sha1
242db51bf31b31d974874d2d0d7ab4e701605a7a
sha256
807da63e6f685cf8aad928f1d0201e40f48bb5a8da85bb981129e96f3b48c00f
sha512
cdc7743101f014c23f615ccdf66412f890fb9c15b632f6288c5282fb5e7c0beb7dccc92b3f7b6f3c43aa3496bbfff05038ccf5270a2fb755fa7e5ab2b224a6d8
ripemd-160
d7289346713535f4812e1b2e518bbfc353465052
Diameter
40010562
Circumference
125696887.6452
Area
1.2573007790838E+15
Volume
3.3536873849454E+22
Surface area
5.0292031163353E+15
Circumference
125696887.6452
Perimeter
80021124
Area
400211267888961
Diagonal
28291739.709285
Surface area
2401267607333766
Volume
8.0063388734849E+21
Space diagonal
34650163.111692
Perimeter
60015843
Area
1.7329656243631E+14
Altitude
17325081.555846
Surface area
1.7329656243631E+14
Volume
9.4355608498644E+20
Height
9430579.9030949