20131605 is an odd 8-digits composite number following 20131604
and preceding 20131606 . In scientific notation, it is written as 2.0131605 × 10^7.
The sum of its digits is 18. It has a total of 2 prime factors and 4 positive divisors.
There are 9910080 positive integers (up to 20131605) that are relatively prime to 20131605.
20131605 has 4 divisors, whose sum is 20144832
The reverse of 20131605 is 50613102
Previous prime number is 1755
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred thirty-one thousand six hundred five
Scientific notation
2.0131605 × 10^7
Engineering notation
2.0131605 × 10^6
Prime Factorization
1755 × 11471
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20131605
Product of the distinct prime numbers
The prime factorization of 20131605 is 1755 × 11471.
Since it has a total of 2 prime factors.
4 , 10 , 20 , 94 , 16 , 776 , 9593 , 349 , 3025 , 45535 , 794507 , 214331 , 4632479 , 2563754 , 60623364 , 59489469 , 66644424 , 379724005 , 9143036635 , 8006615711
n×2
40263210
n×3
60394815
n×4
80526420
n×5
100658025
n÷2
10065802.5
n÷3
6710535
n÷3
5032901.25
n÷5
4026321
n2
405281519876025
n3
8.1589674719438E+21
n4
1.6425311035302E+29
n5
3.3066787376484E+36
2 √n
4486.8257153582
3 √n
272.03584536964
4 √n
66.983772029935
5 √n
28.891871865641
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20131604
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20131605 can be divided by 4 positive divisors.
The sum of these divisors (counting 20131605) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110010111100010101
3
Ternary
1101212210101000
4
Quaternary
1030302330111
5
Quinary
20123202410
6
Senary
1555253513
8
Octal
114627425
10
Decimal
20131605
12
Duodecimal
68aa299
16
Hexadecimal
1332f15
20
Vigesimal
65g905
36
Base36
bzhn9
md5
72914a8c7a4639374a884afe78141bb2
sha1
01a4f2ffaa007ff4d7baf5c946b12a22bdf37022
sha256
8889d7bcc8a973b959d7551fd031f89d5d55a9bbecc60120366047c5d701cf7b
sha512
042ec0d6e6b29b78fcaffffb99718e76d40b4aee79c379d28da647d883d64e12d519e5e6764baabd4bdd05a2c8a62a4515ce47b8cdc0e2b0b76791d0f7c22e90
ripemd-160
83785db3b8b44a79a3f27955729b18fc486a9380
Diameter
40263210
Circumference
126490604.74594
Area
1.2732294454782E+15
Volume
3.4176203027649E+22
Surface area
5.0929177819129E+15
Circumference
126490604.74594
Perimeter
80526420
Area
405281519876025
Diagonal
28470388.823338
Surface area
2431689119256150
Volume
8.1589674719438E+21
Space diagonal
34868962.697908
Perimeter
60394815
Area
1.754920459485E+14
Altitude
17434481.348954
Surface area
1.754920459485E+14
Volume
9.6154353781532E+20
Height
9490129.6077793