20013905 is an odd 8-digits composite number following 20013904
and preceding 20013906 . In scientific notation, it is written as 2.0013905 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 15771888 positive integers (up to 20013905) that are relatively prime to 20013905.
20013905 has 8 divisors, whose sum is 24375552
The reverse of 20013905 is 50931002
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million thirteen thousand nine hundred five
Scientific notation
2.0013905 × 10^7
Engineering notation
2.0013905 × 10^6
Prime Factorization
5 × 67 × 59743
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20013905
Product of the distinct prime numbers
The prime factorization of 20013905 is 5 × 67 × 59743.
Since it has a total of 3 prime factors.
5 , 2 , 45 , 46 , 891 , 70 , 22 , 6054 , 40160 , 29414 , 915486 , 872574 , 4055326 , 2777536 , 6429768 , 68154463 , 514031556 , 410670496 , 94904672 , 1652289393
n×2
40027810
n×3
60041715
n×4
80055620
n×5
100069525
n÷2
10006952.5
n÷3
6671301.6666667
n÷3
5003476.25
n÷5
4002781
n2
400556393349025
n3
8.01669760363E+21
n4
1.6044542425278E+29
n5
3.2111394786798E+36
2 √n
4473.6903111414
3 √n
271.50465371477
4 √n
66.885651010821
5 √n
28.858009151269
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
-20013904
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 20013905 can be divided by 8 positive divisors.
The sum of these divisors (counting 20013905) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100010110001101010001
3
Ternary
1101122210220202
4
Quaternary
1030112031101
5
Quinary
20110421110
6
Senary
1552544545
8
Octal
114261521
10
Decimal
20013905
12
Duodecimal
6852155
16
Hexadecimal
1316351
20
Vigesimal
651ef5
36
Base36
bwytt
md5
0112f9a4a4443442c357137b97ab4b52
sha1
024bb14fe4aec85f634a7841e832d0cea51a24fe
sha256
f909f253c2007a4daed6c8b60d2b6eb88eb64ca7a69b99d02a887a57a489b2ad
sha512
821bb14e432b42e3c6c3138c6ec05314b4d34aa6851503d0743b5a983eb8ab1c97acf9203478438e4116c473de0bfca88249411304ed39f52187367f8234a3fe
ripemd-160
4aa0f974429d31e0ab6b6fde0c0e70ebbeb3af59
Diameter
40027810
Circumference
125751073.83529
Area
1.2583850226937E+15
Volume
3.358026439682E+22
Surface area
5.0335400907749E+15
Circumference
125751073.83529
Perimeter
80055620
Area
400556393349025
Diagonal
28303935.887047
Surface area
2403338360094150
Volume
8.01669760363E+21
Space diagonal
34665100.317857
Perimeter
60041715
Area
1.7344600614426E+14
Altitude
17332550.158928
Surface area
1.7344600614426E+14
Volume
9.4477687304146E+20
Height
9434645.2956822