20405907 is an odd 8-digits composite number following 20405906
and preceding 20405908 . In scientific notation, it is written as 2.0405907 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 13129344 positive integers (up to 20405907) that are relatively prime to 20405907.
20405907 has 8 divisors, whose sum is 22762080
The reverse of 20405907 is 70950402
Previous prime number is 8621
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million four hundred five thousand nine hundred seven
Scientific notation
2.0405907 × 10^7
Engineering notation
2.0405907 × 10^6
Prime Factorization
9 × 8621 × 263
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20405907
Product of the distinct prime numbers
The prime factorization of 20405907 is 9 × 8621 × 263.
Since it has a total of 3 prime factors.
4 , 6 , 69 , 23 , 208 , 739 , 7917 , 6478 , 50528 , 60450 , 42786 , 944452 , 1669118 , 8239901 , 72194684 , 46979145 , 235198952 , 206829458 , 4814093827 , 6574905390
n×2
40811814
n×3
61217721
n×4
81623628
n×5
102029535
n÷2
10202953.5
n÷3
6801969
n÷3
5101476.75
n÷5
4081181.4
n2
416401040492649
n3
8.4970409069962E+21
n4
1.7338982652336E+29
n5
3.5381766747818E+36
2 √n
4517.2897848157
3 √n
273.2658120281
4 √n
67.210786223758
5 √n
28.970179132595
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
-20405906
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 20405907 can be divided by 8 positive divisors.
The sum of these divisors (counting 20405907) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110101111010010011
3
Ternary
1102101201122100
4
Quaternary
1031311322103
5
Quinary
20210442112
6
Senary
2005211443
8
Octal
115657223
10
Decimal
20405907
12
Duodecimal
6a00b83
16
Hexadecimal
1375e93
20
Vigesimal
67aef7
36
Base36
c5dar
md5
3753d616e4cc8056e7fd998eb129e9b5
sha1
7205f9c52909c31cd9d56e3bf67b94c303ccab6f
sha256
2f6694e91804c7215d8cc664b96a1952cacb8a1f5cfef528bc8ed38c9147d425
sha512
24c7004a2de37bb8f3a09fd7fba7b9e63708962fa467221697bcaeeefd11ce1b75e58e973ce6f563fd5af8e8c8358d18de16b807d85ddbf32b03bee877fadd4f
ripemd-160
52b4723ef601a46b01f6f4ab0b5103c984c5a489
Diameter
40811814
Circumference
128214095.04207
Area
1.3081624497589E+15
Volume
3.5592321720895E+22
Surface area
5.2326497990354E+15
Circumference
128214095.04207
Perimeter
81623628
Area
416401040492649
Diagonal
28858310.431924
Surface area
2498406242955894
Volume
8.4970409069962E+21
Space diagonal
35344067.698525
Perimeter
61217721
Area
1.8030693961445E+14
Altitude
17672033.849263
Surface area
1.8030693961445E+14
Volume
1.0013858742261E+21
Height
9619436.8106414