20123561 is an odd 8-digits composite number following 20123560
and preceding 20123562 . In scientific notation, it is written as 2.0123561 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 20039124 positive integers (up to 20123561) that are relatively prime to 20123561.
20123561 has 4 divisors, whose sum is 20208000
The reverse of 20123561 is 16532102
Previous prime number is 239
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred twenty-three thousand five hundred sixty-one
Scientific notation
2.0123561 × 10^7
Engineering notation
2.0123561 × 10^6
Prime Factorization
239 × 84199
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20123561
Product of the distinct prime numbers
The prime factorization of 20123561 is 239 × 84199.
Since it has a total of 2 prime factors.
8 , 1 , 20 , 38 , 311 , 907 , 3848 , 4957 , 50498 , 66372 , 208044 , 4765 , 5909056 , 513306 , 53309664 , 41568886 , 793048378 , 646841050 , 4599012915 , 9892851430
n×2
40247122
n×3
60370683
n×4
80494244
n×5
100617805
n÷2
10061780.5
n÷3
6707853.6666667
n÷3
5030890.25
n÷5
4024712.2
n2
404957707320721
n3
8.1491911256887E+21
n4
1.6399074471845E+29
n5
3.3000777547773E+36
2 √n
4485.9292236949
3 √n
271.99960802279
4 √n
66.977079838516
5 √n
28.889562627294
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
-20123560
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 20123561 can be divided by 4 positive divisors.
The sum of these divisors (counting 20123561) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000111110101001
3
Ternary
1101212101100002
4
Quaternary
1030300332221
5
Quinary
20122423221
6
Senary
1555152345
8
Octal
114607651
10
Decimal
20123561
12
Duodecimal
68a56b5
16
Hexadecimal
1330fa9
20
Vigesimal
65f8i1
36
Base36
bzbft
md5
328d6aa1bb9504624140ecbaaae7c064
sha1
2912c81fae4f1abced2e8232d37d1f6d95ba3235
sha256
a272a0ab9ab9bc5314e8b68e4de78308ae430ffdb05207119866bcede0dff301
sha512
dc2f3f749ce27e270f89c592b900f985f2c8a97773621367f4faaa669dc575fbef375b98e1f31b009b11f08a835540179b08942e6eb50f78b2ad677b82c8e1bf
ripemd-160
aa90b44708e88987e8e69965be231f8a88b15e86
Diameter
40247122
Circumference
126440062.80333
Area
1.2722121583333E+15
Volume
3.4135251964217E+22
Surface area
5.0888486333334E+15
Circumference
126440062.80333
Perimeter
80494244
Area
404957707320721
Diagonal
28459012.889442
Surface area
2429746243924326
Volume
8.1491911256887E+21
Space diagonal
34855030.081212
Perimeter
60370683
Area
1.7535183099902E+14
Altitude
17427515.040606
Surface area
1.7535183099902E+14
Volume
9.6039138435995E+20
Height
9486337.6298141