20451289 is an odd 8-digits composite number following 20451288
and preceding 20451290 . In scientific notation, it is written as 2.0451289 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 18432000 positive integers (up to 20451289) that are relatively prime to 20451289.
20451289 has 8 divisors, whose sum is 21255680
The reverse of 20451289 is 98215402
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million four hundred fifty-one thousand two hundred eighty-nine
Scientific notation
2.0451289 × 10^7
Engineering notation
2.0451289 × 10^6
Prime Factorization
4369 × 31 × 151
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20451289
Product of the distinct prime numbers
The prime factorization of 20451289 is 4369 × 31 × 151.
Since it has a total of 3 prime factors.
3 , 3 , 95 , 47 , 386 , 93 , 8305 , 2537 , 76738 , 89544 , 750181 , 119228 , 2791584 , 6697350 , 45324034 , 55843995 , 245083603 , 205123840 , 1392860412 , 4974413471
n×2
40902578
n×3
61353867
n×4
81805156
n×5
102256445
n÷2
10225644.5
n÷3
6817096.3333333
n÷3
5112822.25
n÷5
4090257.8
n2
418255221761521
n3
8.553858416004E+21
n4
1.7493743053078E+29
n5
3.5776959487024E+36
2 √n
4522.3101397405
3 √n
273.46823980288
4 √n
67.248123689368
5 √n
28.983053411279
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20451288
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20451289 can be divided by 8 positive divisors.
The sum of these divisors (counting 20451289) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110000000111111011001
3
Ternary
1102111000220011
4
Quaternary
1032000333121
5
Quinary
20213420124
6
Senary
2010201521
8
Octal
116007731
10
Decimal
20451289
12
Duodecimal
6a232a1
16
Hexadecimal
1380fd9
20
Vigesimal
67g849
36
Base36
c6cbd
md5
884c3430033bb846a72ae2aab78d01dc
sha1
bdce152d8cd4df6e75dd999a86570864298ddd33
sha256
4c423b38a1c0d9b5b4fa2ea82cd3d1a849558c812efbc20099ff283ec18066d8
sha512
e4929d6bf396d92a5fbbaa97d6353cb36e73ee90481a2d31b875ae106a551b377de79a2153172599f4780de8b67c89a317e6cbe129b5dcd38ae17fd1a75e2a09
ripemd-160
0fc9924042405cfefcf00a8c7a553e77d07df336
Diameter
40902578
Circumference
128499238.55768
Area
1.3139875320116E+15
Volume
3.5830318346087E+22
Surface area
5.2559501280463E+15
Circumference
128499238.55768
Perimeter
81805156
Area
418255221761521
Diagonal
28922490.271812
Surface area
2509531330569126
Volume
8.553858416004E+21
Space diagonal
35422671.628274
Perimeter
61353867
Area
1.8110982365549E+14
Altitude
17711335.814137
Surface area
1.8110982365549E+14
Volume
1.0080818818777E+21
Height
9640830.0906039