20409915 is an odd 8-digits composite number following 20409914
and preceding 20409916 . In scientific notation, it is written as 2.0409915 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 10812000 positive integers (up to 20409915) that are relatively prime to 20409915.
20409915 has 16 divisors, whose sum is 32875776
The reverse of 20409915 is 51990402
Previous prime number is 151
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million four hundred nine thousand nine hundred fifteen
Scientific notation
2.0409915 × 10^7
Engineering notation
2.0409915 × 10^6
Prime Factorization
3 × 5 × 151 × 9011
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20409915
Product of the distinct prime numbers
The prime factorization of 20409915 is 3 × 5 × 151 × 9011.
Since it has a total of 4 prime factors.
2 , 10 , 44 , 24 , 105 , 468 , 9587 , 8644 , 4477 , 40913 , 762943 , 841021 , 9598176 , 7858741 , 5069682 , 64518321 , 529884194 , 922808096 , 8409613076 , 5719526074
n×2
40819830
n×3
61229745
n×4
81639660
n×5
102049575
n÷2
10204957.5
n÷3
6803305
n÷3
5102478.75
n÷5
4081983
n2
416564630307225
n3
8.5020486965769E+21
n4
1.73526091223E+29
n5
3.5416527721436E+36
2 √n
4517.7333918681
3 √n
273.28370190798
4 √n
67.214086260754
5 √n
28.971317071297
1 , 3 , 5 , 15 , 151 , 453 , 755 , 2265 , 9011 , 27033 , 45055 , 135165 , 1360661 , 4081983 , 6803305 , 20409915
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20409914
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20409915 can be divided by 16 positive divisors.
The sum of these divisors (counting 20409915) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101110110111000111011
3
Ternary
1102101221010210
4
Quaternary
1031312320323
5
Quinary
20211104130
6
Senary
2005242203
8
Octal
115667073
10
Decimal
20409915
12
Duodecimal
6a03363
16
Hexadecimal
1376e3b
20
Vigesimal
67b4ff
36
Base36
c5ge3
md5
adf7722a78757cd8231f73220c0b0a67
sha1
ba7bb9f54499740c01883c9dce045126dbf13f12
sha256
e12059afb16e5784d242d1d4a1a09c8e66883ad9f54de16055a2eedbb4cce0c5
sha512
ff1252b7e2f3ec0b4f9f4b381281f0f76a4c935f7954ea1c701f94920be90bd2d1c298438acb4dc994deb4633bb41cd3b16374e70a9cbbc7e7c8dc1b7f82fa92
ripemd-160
7b458fe6b176b40a7c444b18b65dc06ed1f4ee0a
Diameter
40819830
Circumference
128239278.04878
Area
1.3086763823185E+15
Volume
3.5613298300838E+22
Surface area
5.2347055292741E+15
Circumference
128239278.04878
Perimeter
81639660
Area
416564630307225
Diagonal
28863978.599882
Surface area
2499387781843350
Volume
8.5020486965769E+21
Space diagonal
35351009.758162
Perimeter
61229745
Area
1.8037777608206E+14
Altitude
17675504.879081
Surface area
1.8037777608206E+14
Volume
1.001976047888E+21
Height
9621326.1999607