20280729 is an odd 8-digits composite number following 20280728
and preceding 20280730 . In scientific notation, it is written as 2.0280729 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 11588976 positive integers (up to 20280729) that are relatively prime to 20280729.
20280729 has 4 divisors, whose sum is 21246500
The reverse of 20280729 is 92708202
Previous prime number is 21
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million two hundred eighty thousand seven hundred twenty-nine
Scientific notation
2.0280729 × 10^7
Engineering notation
2.0280729 × 10^6
Prime Factorization
21 × 965749
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20280729
Product of the distinct prime numbers
The prime factorization of 20280729 is 21 × 965749.
Since it has a total of 2 prime factors.
7 , 9 , 63 , 66 , 439 , 17 , 2377 , 8525 , 17334 , 47671 , 264439 , 269748 , 4052165 , 2633581 , 43379121 , 99757646 , 493369473 , 607006961 , 2679277055 , 5572894660
n×2
40561458
n×3
60842187
n×4
81122916
n×5
101403645
n÷2
10140364.5
n÷3
6760243
n÷3
5070182.25
n÷5
4056145.8
n2
411307968771441
n3
8.3416254501941E+21
n4
1.6917424517489E+29
n5
3.4309770201715E+36
2 √n
4503.4130390183
3 √n
272.70589158644
4 √n
67.107473794044
5 √n
28.934548661835
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
-20280728
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 20280729 can be divided by 4 positive divisors.
The sum of these divisors (counting 20280729) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101010111010110011001
3
Ternary
1102011100221010
4
Quaternary
1031113112121
5
Quinary
20142440404
6
Senary
2002404133
8
Octal
115272631
10
Decimal
20280729
12
Duodecimal
6960649
16
Hexadecimal
1357599
20
Vigesimal
66f1g9
36
Base36
c2opl
md5
65c907ccea66e78dc7fd852e456044c8
sha1
86cb25b830387c326fa69234877f0d7be7b74fd2
sha256
c2cd3cbd0ada3b4a9f4019f3feec807e4baad91b7e83e023ae2a61188ebbd438
sha512
86f017e7184d4b4ce92470c6816a598c81a2a8db0ba788ebd2ec02e3a227ba4335165f06f5f3c549a27677b694281acaf8ae72000fefd5b2402d526ef62c950a
ripemd-160
d59c09cd1091efde3367f016db8c2bccc610f3c9
Diameter
40561458
Circumference
127427578.47169
Area
1.2921620930553E+15
Volume
3.494131897777E+22
Surface area
5.1686483722212E+15
Circumference
127427578.47169
Perimeter
81122916
Area
411307968771441
Diagonal
28681282.006613
Surface area
2467847812628646
Volume
8.3416254501941E+21
Space diagonal
35127253.042536
Perimeter
60842187
Area
1.7810157486752E+14
Altitude
17563626.521268
Surface area
1.7810157486752E+14
Volume
9.8306998699175E+20
Height
9560427.3355378