20872009 is an odd 8-digits composite number following 20872008
and preceding 20872010 . In scientific notation, it is written as 2.0872009 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20803716 positive integers (up to 20872009) that are relatively prime to 20872009.
20872009 has 4 divisors, whose sum is 20940304
The reverse of 20872009 is 90027802
Previous prime number is 307
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million eight hundred seventy-two thousand nine
Scientific notation
2.0872009 × 10^7
Engineering notation
2.0872009 × 10^6
Prime Factorization
307 × 67987
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20872009
Product of the distinct prime numbers
The prime factorization of 20872009 is 307 × 67987.
Since it has a total of 2 prime factors.
2 , 4 , 15 , 17 , 699 , 152 , 3055 , 6709 , 83799 , 91388 , 614881 , 103614 , 7999042 , 1889305 , 32167568 , 26245984 , 683239863 , 914941574 , 3334669310 , 2044820316
n×2
41744018
n×3
62616027
n×4
83488036
n×5
104360045
n÷2
10436004.5
n÷3
6957336.3333333
n÷3
5218002.25
n÷5
4174401.8
n2
435640759696081
n3
9.0926978571434E+21
n4
1.8978287150858E+29
n5
3.9611498021729E+36
2 √n
4568.5893884218
3 √n
275.33077113361
4 √n
67.591341075775
5 √n
29.101330867199
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
-20872008
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 20872009 can be divided by 4 positive divisors.
The sum of these divisors (counting 20872009) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111100111101101001001
3
Ternary
1110021102000101
4
Quaternary
1033213231021
5
Quinary
20320401014
6
Senary
2023205401
8
Octal
117475511
10
Decimal
20872009
12
Duodecimal
6ba6861
16
Hexadecimal
13e7b49
20
Vigesimal
6a9009
36
Base36
cfcy1
md5
41c245dc7a3b2e49bb1c193b8b5b7dfa
sha1
8324fc721603a5f4343f756cb59710cde4e0e8dc
sha256
2e1512ca16c8de3b1fb21cdce83370c00e434441b7cb3fa7cbf73dc2a7e1fbf3
sha512
d44e24ac1eb65a7fe24ff7a9d6c26a816447e7c080bc8b0665f6f671d743a51e8e61353d2c784a49a944c5336a43c0c4e1bafb7e39e35c2a0451b2e4538d9cbf
ripemd-160
250ce9ffa50ad1b777cdc4ddb061fcdbcd8c2f2e
Diameter
41744018
Circumference
131142700.28012
Area
1.3686058102655E+15
Volume
3.8087403719085E+22
Surface area
5.4744232410619E+15
Circumference
131142700.28012
Perimeter
83488036
Area
435640759696081
Diagonal
29517478.201773
Surface area
2613844558176486
Volume
9.0926978571434E+21
Space diagonal
36151380.044035
Perimeter
62616027
Area
1.8863798241038E+14
Altitude
18075690.022017
Surface area
1.8863798241038E+14
Volume
1.0715847190111E+21
Height
9839159.4005911