20797731 is an odd 8-digits composite number following 20797730
and preceding 20797732 . In scientific notation, it is written as 2.0797731 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 13846896 positive integers (up to 20797731) that are relatively prime to 20797731.
20797731 has 12 divisors, whose sum is 30080752
The reverse of 20797731 is 13779702
Previous prime number is 1447
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million seven hundred ninety-seven thousand seven hundred thirty-one
Scientific notation
2.0797731 × 10^7
Engineering notation
2.0797731 × 10^6
Prime Factorization
3 × 3 × 1447 × 1597
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6932577
Product of the distinct prime numbers
The prime factorization of 20797731 is 3 × 3 × 1447 × 1597.
Since it has a total of 4 prime factors.
9 , 5 , 68 , 98 , 7 , 849 , 2724 , 9837 , 77865 , 52604 , 676123 , 662543 , 884152 , 5427119 , 34701561 , 9278330 , 108950693 , 325767302 , 1235240651 , 3073233830
n×2
41595462
n×3
62393193
n×4
83190924
n×5
103988655
n÷2
10398865.5
n÷3
6932577
n÷3
5199432.75
n÷5
4159546.2
n2
432545614748361
n3
8.995967340766E+21
n4
1.8709570883804E+29
n5
3.8911662236678E+36
2 √n
4560.4529380315
3 √n
275.00377295099
4 √n
67.531125697944
5 √n
29.080588520342
1 , 3 , 9 , 1447 , 1597 , 4341 , 4791 , 13023 , 14373 , 2310859 , 6932577 , 20797731
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20797730
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20797731 can be divided by 12 positive divisors.
The sum of these divisors (counting 20797731) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111010101100100100011
3
Ternary
1110010122010100
4
Quaternary
1033111210203
5
Quinary
20311011411
6
Senary
2021433443
8
Octal
117254443
10
Decimal
20797731
12
Duodecimal
6b6b883
16
Hexadecimal
13d5923
20
Vigesimal
69je6b
36
Base36
cdrmr
md5
9a118a6d6f675c169af80aceec502144
sha1
1688e3cc80c4b9b8223fa1d1af7c58ee0e6e0900
sha256
ee179ff7877e4fda869920d469048f947a2ce956ca0371dbc3da4ce4f791428c
sha512
53cfb143ad352b7cb29b7e800174bc4c4b889cb339b0d904c2aba1a7fb1aad1f841a5f7110e08ec749a034111632d7fbc162a8487f6d260f3ca4ee4d2d71c9f6
ripemd-160
7e6f7fc49843138a260290951347fef60a60b532
Diameter
41595462
Circumference
130675997.84187
Area
1.3588821256359E+15
Volume
3.7682219879579E+22
Surface area
5.4355285025437E+15
Circumference
130675997.84187
Perimeter
83190924
Area
432545614748361
Diagonal
29412433.246787
Surface area
2595273688490166
Volume
8.995967340766E+21
Space diagonal
36022726.77415
Perimeter
62393193
Area
1.8729774533382E+14
Altitude
18011363.387075
Surface area
1.8729774533382E+14
Volume
1.0601849183314E+21
Height
9804144.4155958