20112561 is an odd 8-digits composite number following 20112560
and preceding 20112562 . In scientific notation, it is written as 2.0112561 × 10^7.
The sum of its digits is 18. It has a total of 5 prime factors and 24 positive divisors.
There are 11400480 positive integers (up to 20112561) that are relatively prime to 20112561.
20112561 has 24 divisors, whose sum is 33468864
The reverse of 20112561 is 16521102
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred twelve thousand five hundred sixty-one
Scientific notation
2.0112561 × 10^7
Engineering notation
2.0112561 × 10^6
Prime Factorization
3 × 3 × 7 × 131 × 2437
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
6704187
Product of the distinct prime numbers
The prime factorization of 20112561 is 3 × 3 × 7 × 131 × 2437.
Since it has a total of 5 prime factors.
10 , 6 , 54 , 72 , 714 , 831 , 5648 , 5333 , 69586 , 46871 , 286311 , 579895 , 963536 , 2725019 , 91399411 , 52808196 , 931213206 , 404937744 , 3560211232 , 1718326607
n×2
40225122
n×3
60337683
n×4
80450244
n×5
100562805
n÷2
10056280.5
n÷3
6704187
n÷3
5028140.25
n÷5
4022512.2
n2
404515109978721
n3
8.1358348248687E+21
n4
1.636324742011E+29
n5
3.2910681189505E+36
2 √n
4484.7030001997
3 √n
271.95003858164
4 √n
66.967925159734
5 √n
28.886403596989
1 , 3 , 7 , 9 , 21 , 63 , 131 , 393 , 917 , 1179 , 2437 , 2751 , 7311 , 8253 , 17059 , 21933 , 51177 , 153531 , 319247 , 957741 , 2234729 , 2873223 , 6704187 , 20112561
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20112560
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20112561 can be divided by 24 positive divisors.
The sum of these divisors (counting 20112561) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100101110010010110001
3
Ternary
1101211211020200
4
Quaternary
1030232102301
5
Quinary
20122100221
6
Senary
1555025413
8
Octal
114562261
10
Decimal
20112561
12
Duodecimal
689b269
16
Hexadecimal
132e4b1
20
Vigesimal
65e181
36
Base36
bz2y9
md5
cbc1f078d86bd3dcdfd2097b589dea8b
sha1
a7c036af1f1b9700b1e9dc8a2b4af24976feb176
sha256
d871bc7042ab2fb5e8c0a309a96553667f9c2fc87dce23278ef56fbade945384
sha512
c0430866afcead882ee5b7c7cb6b2dbad7b99dc4ecddbf7afa190506819c5d3d55a260d41125231998aad8c7d2b76275c5bd18adf819f07d4f04b8d39d842066
ripemd-160
5f3b49c0d86d4baa96b2599323e158696781814b
Diameter
40225122
Circumference
126370947.76495
Area
1.2708216977752E+15
Volume
3.407930522217E+22
Surface area
5.0832867911009E+15
Circumference
126370947.76495
Perimeter
80450244
Area
404515109978721
Diagonal
28443456.540256
Surface area
2427090659872326
Volume
8.1358348248687E+21
Space diagonal
34835977.522328
Perimeter
60337683
Area
1.7516018072811E+14
Altitude
17417988.761164
Surface area
1.7516018072811E+14
Volume
9.5881732921306E+20
Height
9481152.1800854