20121305 is an odd 8-digits composite number following 20121304
and preceding 20121306 . In scientific notation, it is written as 2.0121305 × 10^7.
The sum of its digits is 14. It has a total of 3 prime factors and 8 positive divisors.
There are 16080768 positive integers (up to 20121305) that are relatively prime to 20121305.
20121305 has 8 divisors, whose sum is 24169992
The reverse of 20121305 is 50312102
Previous prime number is 1693
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 14
Digital Root 5
Name
twenty million one hundred twenty-one thousand three hundred five
Scientific notation
2.0121305 × 10^7
Engineering notation
2.0121305 × 10^6
Prime Factorization
5 × 1693 × 2377
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121305
Product of the distinct prime numbers
The prime factorization of 20121305 is 5 × 1693 × 2377.
Since it has a total of 3 prime factors.
5 , 2 , 97 , 75 , 856 , 629 , 9702 , 851 , 61840 , 47858 , 918046 , 606357 , 7563040 , 3696081 , 16958902 , 15142900 , 46989810 , 415232608 , 6819867858 , 6257832015
n×2
40242610
n×3
60363915
n×4
80485220
n×5
100606525
n÷2
10060652.5
n÷3
6707101.6666667
n÷3
5030326.25
n÷5
4024261
n2
404866914903025
n3
8.1464506791728E+21
n4
1.6391721878309E+29
n5
3.2982283538863E+36
2 √n
4485.6777637276
3 √n
271.98944325378
4 √n
66.97520260311
5 √n
28.888914851523
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
-20121304
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 20121305 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121305) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000011011011001
3
Ternary
1101212021020112
4
Quaternary
1030300123121
5
Quinary
20122340210
6
Senary
1555134105
8
Octal
114603331
10
Decimal
20121305
12
Duodecimal
68a4335
16
Hexadecimal
13306d9
20
Vigesimal
65f355
36
Base36
bz9p5
md5
e9124d763dda893e81ecfb4d53416a91
sha1
b2c7a14cd9af5e494d935f02fe4512f80015621d
sha256
0195f45eb1849348a85adcb28664507608e50222dae4812576f8abdb5e77fd1a
sha512
2bee6c06382d0645c18062b09515b3d66be1a4ede7b4973b18a52dede8782af907a5982c20648fa55b2524f5fc8e815f0317a45818404db44f36614a1f40413d
ripemd-160
8ec0f1b15654a08b12160f1dd1e21d1be0cce810
Diameter
40242610
Circumference
126425887.93728
Area
1.2719269255409E+15
Volume
3.4123772808695E+22
Surface area
5.0877077021636E+15
Circumference
126425887.93728
Perimeter
80485220
Area
404866914903025
Diagonal
28455822.423646
Surface area
2429201489418150
Volume
8.1464506791728E+21
Space diagonal
34851122.57459
Perimeter
60363915
Area
1.7531251672893E+14
Altitude
17425561.287295
Surface area
1.7531251672893E+14
Volume
9.6006841964081E+20
Height
9485274.1412152