20280731 is an odd 8-digits composite number following 20280730
and preceding 20280732 . In scientific notation, it is written as 2.0280731 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 19948200 positive integers (up to 20280731) that are relatively prime to 20280731.
20280731 has 4 divisors, whose sum is 20613264
The reverse of 20280731 is 13708202
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million two hundred eighty thousand seven hundred thirty-one
Scientific notation
2.0280731 × 10^7
Engineering notation
2.0280731 × 10^6
Prime Factorization
61 × 332471
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20280731
Product of the distinct prime numbers
The prime factorization of 20280731 is 61 × 332471.
Since it has a total of 2 prime factors.
9 , 10 , 13 , 19 , 369 , 409 , 9629 , 8654 , 5856 , 34142 , 948556 , 717394 , 492312 , 479628 , 17276129 , 57270489 , 463739140 , 819101489 , 6704443849 , 7442641797
n×2
40561462
n×3
60842193
n×4
81122924
n×5
101403655
n÷2
10140365.5
n÷3
6760243.6666667
n÷3
5070182.75
n÷5
4056146.2
n2
411308049894361
n3
8.3416279180421E+21
n4
1.691743119079E+29
n5
3.4309787119143E+36
2 √n
4503.4132610721
3 √n
272.70590055081
4 √n
67.107475448508
5 √n
28.934549232516
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
-20280730
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 20280731 can be divided by 4 positive divisors.
The sum of these divisors (counting 20280731) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101010111010110011011
3
Ternary
1102011100221012
4
Quaternary
1031113112123
5
Quinary
20142440411
6
Senary
2002404135
8
Octal
115272633
10
Decimal
20280731
12
Duodecimal
696064b
16
Hexadecimal
135759b
20
Vigesimal
66f1gb
36
Base36
c2opn
md5
f06d815a547eb7694e80f71051173619
sha1
8dd356ac4eef35fef120f0369b5e67c3f6314d28
sha256
c626fac8ed39607f628a995c8c1f2a192f67c6e1231e3a790b2f8317d36d8ab3
sha512
fb2e8429e2f9cbffa00f1c77a11019d310c3703c818749dbf254780719f871f6a9cfe11494390f5e83218ffe3a4e53382ee4a1909b1ebea2304bed73f26604bc
ripemd-160
36899fa14376c5f3397ea94250c4e30e282c98f8
Diameter
40561462
Circumference
127427591.03806
Area
1.2921623479105E+15
Volume
3.4941329315067E+22
Surface area
5.1686493916419E+15
Circumference
127427591.03806
Perimeter
81122924
Area
411308049894361
Diagonal
28681284.83504
Surface area
2467848299366166
Volume
8.3416279180421E+21
Space diagonal
35127256.506637
Perimeter
60842193
Area
1.7810160999478E+14
Altitude
17563628.253319
Surface area
1.7810160999478E+14
Volume
9.8307027783043E+20
Height
9560428.2783468