20278081 is an odd 8-digits composite number following 20278080
and preceding 20278082 . In scientific notation, it is written as 2.0278081 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20257200 positive integers (up to 20278081) that are relatively prime to 20278081.
20278081 has 4 divisors, whose sum is 20298964
The reverse of 20278081 is 18087202
Previous prime number is 19861
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million two hundred seventy-eight thousand eighty-one
Scientific notation
2.0278081 × 10^7
Engineering notation
2.0278081 × 10^6
Prime Factorization
19861 × 1021
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20278081
Product of the distinct prime numbers
The prime factorization of 20278081 is 19861 × 1021.
Since it has a total of 2 prime factors.
3 , 1 , 51 , 23 , 692 , 651 , 8857 , 3821 , 68316 , 65546 , 438362 , 310917 , 4746311 , 5503088 , 59760952 , 64094973 , 558961464 , 446726277 , 606221148 , 7256249520
n×2
40556162
n×3
60834243
n×4
81112324
n×5
101390405
n÷2
10139040.5
n÷3
6759360.3333333
n÷3
5069520.25
n÷5
4055616.2
n2
411200569042561
n3
8.3383584462911E+21
n4
1.6908590798093E+29
n5
3.4287377379958E+36
2 √n
4503.1190301834
3 √n
272.69402224598
4 √n
67.105283176389
5 √n
28.933793041199
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
-20278080
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 20278081 can be divided by 4 positive divisors.
The sum of these divisors (counting 20278081) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101010110101101000001
3
Ternary
1102011020022001
4
Quaternary
1031112231001
5
Quinary
20142344311
6
Senary
2002344001
8
Octal
115265501
10
Decimal
20278081
12
Duodecimal
695b001
16
Hexadecimal
1356b41
20
Vigesimal
66ef41
36
Base36
c2mo1
md5
18d8e848bb26f5dd8f11d5aa9936b6cb
sha1
81df1322957d214b514f148921d4f60a39450093
sha256
d6c9550f6e9331355a142afb9ec837ed4fbf0dec495dcb540c6c9ed73639b523
sha512
28695524c42462bb082a94647ec327b00a959ee5a41275c70690a446af4c600eafd0d6e25cb133cccec47bd69dae73147b2e997aea4b4c46997304a36e35c5b9
ripemd-160
4832df152379848a3b41038c240061ab70e415cd
Diameter
40556162
Circumference
127410940.597
Area
1.2918246868561E+15
Volume
3.4927634183822E+22
Surface area
5.1672987474242E+15
Circumference
127410940.597
Perimeter
81112324
Area
411200569042561
Diagonal
28677537.1691
Surface area
2467203414255366
Volume
8.3383584462911E+21
Space diagonal
35122666.571997
Perimeter
60834243
Area
1.7805506942074E+14
Altitude
17561333.285999
Surface area
1.7805506942074E+14
Volume
9.8268496688943E+20
Height
9559179.0563667