20280387 is an odd 8-digits composite number following 20280386
and preceding 20280388 . In scientific notation, it is written as 2.0280387 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 13520256 positive integers (up to 20280387) that are relatively prime to 20280387.
20280387 has 4 divisors, whose sum is 27040520
The reverse of 20280387 is 78308202
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million two hundred eighty thousand three hundred eighty-seven
Scientific notation
2.0280387 × 10^7
Engineering notation
2.0280387 × 10^6
Prime Factorization
3 × 6760129
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20280387
Product of the distinct prime numbers
The prime factorization of 20280387 is 3 × 6760129.
Since it has a total of 2 prime factors.
3 , 9 , 70 , 12 , 414 , 134 , 5470 , 8913 , 98859 , 66509 , 272380 , 665515 , 9140687 , 1803133 , 94305339 , 24897846 , 364764648 , 53631625 , 7969678065 , 4907434071
n×2
40560774
n×3
60841161
n×4
81121548
n×5
101401935
n÷2
10140193.5
n÷3
6760129
n÷3
5070096.75
n÷5
4056077.4
n2
411294096869769
n3
8.3412034553344E+21
n4
1.6916283411992E+29
n5
3.4306877419688E+36
2 √n
4503.3750676576
3 √n
272.70435867082
4 √n
67.107190878904
5 √n
28.934451074787
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
-20280386
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 20280387 can be divided by 4 positive divisors.
The sum of these divisors (counting 20280387) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101010111010001000011
3
Ternary
1102011100110110
4
Quaternary
1031113101003
5
Quinary
20142433022
6
Senary
2002402403
8
Octal
115272103
10
Decimal
20280387
12
Duodecimal
6960403
16
Hexadecimal
1357443
20
Vigesimal
66f0j7
36
Base36
c2og3
md5
b79a5f2156baa6a865699d1db404b723
sha1
b27681aafccdd8d5eab45cde3e4ad5d2a7f2989a
sha256
d9d6d35df962301d4c59ca938a9a9140ab02ac56743a128af9c746fb443eab3d
sha512
6bb38847d480001b22bd95b77f6bc93e01215103552242e16425f5fe71176e0283f3ffe0ebe03bbb45b0773871dc075f06f99752535b6b5688a1c27645c20e86
ripemd-160
d68cd15c27e775933f726af8d006d32c91caf98f
Diameter
40560774
Circumference
127425429.62232
Area
1.2921185131909E+15
Volume
3.4939551329835E+22
Surface area
5.1684740527637E+15
Circumference
127425429.62232
Perimeter
81121548
Area
411294096869769
Diagonal
28680798.345575
Surface area
2467764581218614
Volume
8.3412034553344E+21
Space diagonal
35126660.681159
Perimeter
60841161
Area
1.780955681579E+14
Altitude
17563330.34058
Surface area
1.780955681579E+14
Volume
9.830202544206E+20
Height
9560266.1151917