20402685 is an odd 8-digits composite number following 20402684
and preceding 20402686 . In scientific notation, it is written as 2.0402685 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 10881216 positive integers (up to 20402685) that are relatively prime to 20402685.
20402685 has 12 divisors, whose sum is 27506388
The reverse of 20402685 is 58620402
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million four hundred two thousand six hundred eighty-five
Scientific notation
2.0402685 × 10^7
Engineering notation
2.0402685 × 10^6
Prime Factorization
5 × 9 × 9 × 50377
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2266965
Product of the distinct prime numbers
The prime factorization of 20402685 is 5 × 9 × 9 × 50377.
Since it has a total of 4 prime factors.
3 , 1 , 16 , 75 , 868 , 801 , 1110 , 7348 , 48933 , 58669 , 847268 , 615222 , 6482341 , 4245726 , 29727708 , 58455919 , 241362873 , 784819087 , 813437347 , 3707298499
n×2
40805370
n×3
61208055
n×4
81610740
n×5
102013425
n÷2
10201342.5
n÷3
6800895
n÷3
5100671.25
n÷5
4080537
n2
416269555209225
n3
8.4930166100239E+21
n4
1.7328034259409E+29
n5
3.5353842466392E+36
2 √n
4516.9331409708
3 √n
273.25142879435
4 √n
67.208132997211
5 √n
28.969264222878
1 , 5 , 9 , 45 , 81 , 405 , 50377 , 251885 , 453393 , 2266965 , 4080537 , 20402685
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
-20402684
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 20402685 can be divided by 12 positive divisors.
The sum of these divisors (counting 20402685) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101110101000111111101
3
Ternary
1102101120020000
4
Quaternary
1031311013331
5
Quinary
20210341220
6
Senary
2005144513
8
Octal
115650775
10
Decimal
20402685
12
Duodecimal
69bb139
16
Hexadecimal
13751fd
20
Vigesimal
67a6e5
36
Base36
c5at9
md5
84915cd5c46e659dee464702e2cb40fa
sha1
606540aa7e9814f65ff942bda871f8ea4b2bc9b4
sha256
ae1e7a45e379191083a73dc53927778efab84b3fa0534f6dddc4029eec118b27
sha512
c5a30f32320a9c41ef490e987ac5cc53d46ee67e8891b941ab31126f11e7932611f1c89e23ddce2cda9e9814b5e1d724da6c5fc74ca1babccedfe1594931ff08
ripemd-160
d49a1bbc5a45d3326d964a57bc318b842e40b690
Diameter
40805370
Circumference
128193850.61901
Area
1.3077493765584E+15
Volume
3.5575464785156E+22
Surface area
5.2309975062336E+15
Circumference
128193850.61901
Perimeter
81610740
Area
416269555209225
Diagonal
28853753.835826
Surface area
2497617331255350
Volume
8.4930166100239E+21
Space diagonal
35338487.030823
Perimeter
61208055
Area
1.8025000481662E+14
Altitude
17669243.515412
Surface area
1.8025000481662E+14
Volume
1.0009116062797E+21
Height
9617917.9452754