20115909 is an odd 8-digits composite number following 20115908
and preceding 20115910 . In scientific notation, it is written as 2.0115909 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors.
There are 11988000 positive integers (up to 20115909) that are relatively prime to 20115909.
20115909 has 24 divisors, whose sum is 32227104
The reverse of 20115909 is 90951102
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred fifteen thousand nine hundred nine
Scientific notation
2.0115909 × 10^7
Engineering notation
2.0115909 × 10^6
Prime Factorization
11 × 3 × 3 × 61 × 3331
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
6705303
Product of the distinct prime numbers
The prime factorization of 20115909 is 11 × 3 × 3 × 61 × 3331.
Since it has a total of 5 prime factors.
9 , 9 , 19 , 50 , 152 , 57 , 1097 , 5743 , 6483 , 65517 , 243179 , 601487 , 6580452 , 2876106 , 57020869 , 47872246 , 462857226 , 134343862 , 2599956804 , 153100025
n×2
40231818
n×3
60347727
n×4
80463636
n×5
100579545
n÷2
10057954.5
n÷3
6705303
n÷3
5028977.25
n÷5
4023181.8
n2
404649794896281
n3
8.1398984510023E+21
n4
1.637414565096E+29
n5
3.2938082386746E+36
2 √n
4485.0762535324
3 √n
271.96512762993
4 √n
66.970711908508
5 √n
28.887365237233
1 , 3 , 9 , 11 , 33 , 61 , 99 , 183 , 549 , 671 , 2013 , 3331 , 6039 , 9993 , 29979 , 36641 , 109923 , 203191 , 329769 , 609573 , 1828719 , 2235101 , 6705303 , 20115909
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
-20115908
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 20115909 can be divided by 24 positive divisors.
The sum of these divisors (counting 20115909) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100101111000111000101
3
Ternary
1101211222211200
4
Quaternary
1030233013011
5
Quinary
20122202114
6
Senary
1555053113
8
Octal
114570705
10
Decimal
20115909
12
Duodecimal
68a1199
16
Hexadecimal
132f1c5
20
Vigesimal
65e9f9
36
Base36
bz5j9
md5
d9d3cdbaa5c075edb216566cc197eab7
sha1
76e565edfada420c35f95efacbe1c78c2e961829
sha256
92b33a982cfb00c6abfdc13ebb0e7d99767c9b5047c62b6d965d24a0627837b5
sha512
5b4cfdd9220927c64d54a03374c085cd8023e11b941997bbd731cbc72757e094c73e17eb7bc38e0c092f6046b028e88bb3f7c4f910153b5862a6d99e0f92f4d5
ripemd-160
9bce8689d4ed14298fc52a85fd268c5d2f813be0
Diameter
40231818
Circumference
126391983.86936
Area
1.2712448229228E+15
Volume
3.4096326899514E+22
Surface area
5.0849792916911E+15
Circumference
126391983.86936
Perimeter
80463636
Area
404649794896281
Diagonal
28448191.327263
Surface area
2427898769377686
Volume
8.1398984510023E+21
Space diagonal
34841776.428432
Perimeter
60347727
Area
1.7521850100817E+14
Altitude
17420888.214216
Surface area
1.7521850100817E+14
Volume
9.5929623214559E+20
Height
9482730.442421